{"title":"Specialty Crop Fertilizers","description":"\u003ch2\u003eProfessional-Grade Fertilizers Formulated for Specialty Crops\u003c\/h2\u003e\n\u003cp\u003eGive your plants the precise nutrition they need at every stage of growth. Our curated collection of dry, water-soluble fertilizers is trusted by commercial cultivators and serious home growers alike — delivering consistent, measurable results from propagation to harvest.\u003c\/p\u003e\n\u003cp\u003eWhether you're building a custom nutrient formula tailored to your specific grow facility or looking for a ready-to-use commercial blend, every product in this collection is fully soluble and engineered for maximum nutrient uptake in soil, coco, and hydroponic systems.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose Our Specialty Crop Fertilizers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOptimized NPK ratios\u003c\/strong\u003e — formulas designed specifically for veg, bloom, and finishing stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully water-soluble\u003c\/strong\u003e — dissolves completely with no residue, compatible with drip, NFT, and hand-watering\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximize yield and quality\u003c\/strong\u003e — support secondary metabolite development with balanced macro and micronutrients\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible options\u003c\/strong\u003e — individual components for custom formulation or complete blends for commercial cultivation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast shipping\u003c\/strong\u003e — orders ship quickly and arrive safely\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eIdeal For\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIndoor and greenhouse specialty crop cultivation\u003c\/li\u003e\n\u003cli\u003eHydroponic, coco coir, and soil-based systems\u003c\/li\u003e\n\u003cli\u003eCommercial licensed facilities building custom feed programs\u003c\/li\u003e\n\u003cli\u003eVeg, bloom, and finishing stages\u003c\/li\u003e\n\u003c\/ul\u003e","products":[{"product_id":"source-water-test","title":"Irrigation Source Water Lab Test","description":"\u003ch2\u003eIrrigation Source Water Lab Test\u003c\/h2\u003e\u003cp\u003eThe foundation of any successful fertilizer program starts with knowing your water. Whether you're running a commercial greenhouse, hydroponic operation, or large-scale fertigation system, your source water chemistry directly impacts root zone pH, nutrient availability, and crop quality. This professional lab analysis gives you the complete picture — so you can build a fertilizer program that actually works.\u003c\/p\u003e\u003ch3\u003eWhat This Test Covers\u003c\/h3\u003e\u003cp\u003eA comprehensive screening of all key elements that impact crop nutrition:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003epH and soluble salts\u003c\/li\u003e\n\u003cli\u003eAlkalinity and total nitrogen (nitrate-N, ammoniacal-N)\u003c\/li\u003e\n\u003cli\u003ePhosphorus, potassium, calcium, magnesium, sulfur\u003c\/li\u003e\n\u003cli\u003eMicronutrients: boron, copper, iron, manganese, molybdenum, zinc\u003c\/li\u003e\n\u003cli\u003eHarmful elements: sodium, chloride, fluoride, aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat You Get\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIdentifies the best controlled-release or water-soluble fertilizer program for your water chemistry\u003c\/li\u003e\n\u003cli\u003eDetermines how irrigation water will impact root zone pH\u003c\/li\u003e\n\u003cli\u003eIdentifies nutrient sources in your water and gaps that need supplementation\u003c\/li\u003e\n\u003cli\u003eFlags harmful salts and metals that can inhibit crop quality\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePurchase this test — we ship you a sample collection kit with all shipping materials and a prepaid label\u003c\/li\u003e\n\u003cli\u003eCollect your water sample and send it directly to the ICL Specialty Fertilizers lab\u003c\/li\u003e\n\u003cli\u003eReceive your results by email\u003c\/li\u003e\n\u003c\/ol\u003e\u003cp\u003e\u003cstrong\u003eRecommended frequency:\u003c\/strong\u003e Test new water sources before use, and re-test established sources at least twice per year.\u003c\/p\u003e","brand":"ICL Specialty Fertilizers","offers":[{"title":"Default Title","offer_id":42221257687124,"sku":"SRC-WTR-TST","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/untitled_20_6.jpg?v=1752678978"},{"product_id":"nutrient-solution-test","title":"Hydroponic Nutrient Solution Lab Test","description":"\u003ch2\u003eHydroponic Nutrient Solution Lab Test\u003c\/h2\u003e\u003cp\u003eYour stock tank recipe looks right on paper — but is it actually delivering what your crops need? The Hydroponic Nutrient Solution Lab Test gives you a definitive answer. By submitting a sample of your fertilizer solution, you get a comprehensive professional analysis that confirms your injector systems are dialed in and your nutrient delivery is on target.\u003c\/p\u003e\u003ch3\u003eWhat This Test Covers\u003c\/h3\u003e\u003cp\u003eA full screening of all key elements in your fertilizer solution:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003epH, alkalinity, and soluble salts\u003c\/li\u003e\n\u003cli\u003eTotal nitrogen (nitrate-N, ammoniacal-N)\u003c\/li\u003e\n\u003cli\u003ePhosphorus, potassium, calcium, magnesium, sulfur\u003c\/li\u003e\n\u003cli\u003eMicronutrients: boron, copper, iron, manganese, molybdenum, zinc\u003c\/li\u003e\n\u003cli\u003eSodium, chloride, fluoride, aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat You Get\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eVerifies your stock tank recipe is correct and consistent\u003c\/li\u003e\n\u003cli\u003eConfirms fertilizer and acid injection systems are operating at peak efficiency\u003c\/li\u003e\n\u003cli\u003eDetermines optimal stock tank mixture ratios\u003c\/li\u003e\n\u003cli\u003eEvaluates effectiveness of filters and R\/O systems\u003c\/li\u003e\n\u003cli\u003eIdentifies needed corrections before they impact crop performance\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePurchase this test — we ship you a sample collection kit with a pre-addressed 2-day Priority Mail package\u003c\/li\u003e\n\u003cli\u003eSubmit a sample of your hydroponic or fertilizer solution directly to the ICL lab\u003c\/li\u003e\n\u003cli\u003eReceive your results by email\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ICL Specialty Fertilizers","offers":[{"title":"Default Title","offer_id":42225608425556,"sku":"NUTE-TST","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/untitled_20_7.jpg?v=1752678978"},{"product_id":"growing-media-test","title":"Soilless Growing Media Lab Test (SME)","description":"\u003ch2\u003eSoilless Growing Media Lab Test (Saturated Media Extraction)\u003c\/h2\u003e\u003cp\u003eIs your growing media supporting your crop — or working against it? The Soilless Growing Media Lab Test uses the industry-standard Saturated Media Extraction (SME) method to give you a precise snapshot of the nutritional status inside your containers. Whether you're running peat, coco coir, Pro-Mix, or another soilless substrate, this test tells you exactly what's happening at the root zone.\u003c\/p\u003e\u003ch3\u003eWhat This Test Covers\u003c\/h3\u003e\u003cp\u003eA comprehensive screening of all key growth parameters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003epH and soluble salts\u003c\/li\u003e\n\u003cli\u003eAlkalinity and total nitrogen (nitrate-N, ammoniacal-N)\u003c\/li\u003e\n\u003cli\u003ePhosphorus, potassium, calcium, magnesium, sulfur\u003c\/li\u003e\n\u003cli\u003eMicronutrients: boron, copper, iron, manganese, molybdenum, zinc\u003c\/li\u003e\n\u003cli\u003eSodium, chloride, fluoride, aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat You Get\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvaluates nutritional status of greenhouse and nursery container media\u003c\/li\u003e\n\u003cli\u003eHigh-level quality check of your fertilizer program and crop status\u003c\/li\u003e\n\u003cli\u003eIdentifies and helps solve nutrient deficiency and toxicity problems\u003c\/li\u003e\n\u003cli\u003eCompatible with peat, coco coir, Pro-Mix, and other soilless substrates\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePurchase this test — we ship you a sample collection kit with all shipping materials and a prepaid label\u003c\/li\u003e\n\u003cli\u003eCollect your growing media sample and send it directly to the ICL Specialty Fertilizers lab\u003c\/li\u003e\n\u003cli\u003eReceive your results by email\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"ICL Specialty Fertilizers","offers":[{"title":"Default Title","offer_id":42225608392788,"sku":"GRO-MEDIA-TST","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/untitled_20_8.jpg?v=1752678978"},{"product_id":"mineral-soil-test","title":"Mineral Soil Lab Test | Field \u0026 In-Ground Crops","description":"\u003ch2\u003eMineral Soil Lab Test\u003c\/h2\u003e\u003cp\u003eBefore you plant, know your soil. The Mineral Soil Lab Test gives farmers, landscapers, and nursery growers a precise nutritional profile of their field soil — so you can build a targeted fertilizer program that addresses actual deficiencies rather than guessing. Whether you're managing turf, in-ground nursery crops, or field production, this test delivers the data you need to optimize performance from the ground up.\u003c\/p\u003e\u003ch3\u003eWhat This Test Covers\u003c\/h3\u003e\u003cp\u003eA comprehensive screening of all key soil parameters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCEC (Cation Exchange Capacity), pH, and soluble salts\u003c\/li\u003e\n\u003cli\u003eNitrate-N, phosphorus, potassium, calcium, magnesium, sulfur\u003c\/li\u003e\n\u003cli\u003eMicronutrients: boron, copper, iron, manganese, zinc\u003c\/li\u003e\n\u003cli\u003eSodium\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhat You Get\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eEvaluates nutritional status of field soil for turf, landscapes, and in-ground nursery crops\u003c\/li\u003e\n\u003cli\u003eIdentifies nutritional needs prior to planting\u003c\/li\u003e\n\u003cli\u003eHigh-level quality check of your fertilizer program and crop status\u003c\/li\u003e\n\u003cli\u003eHelps diagnose and solve nutrient deficiency and toxicity problems\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHow to Collect Your Sample\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003eSample soil every 4 weeks at the same interval after feeding or watering for the most useful results\u003c\/li\u003e\n\u003cli\u003eCollect 1.5–2 cups of soil from the root zone at 8+ points across the area to be tested\u003c\/li\u003e\n\u003cli\u003eCombine into a composite sample for an average reading across the landscape\u003c\/li\u003e\n\u003cli\u003eSeal, label clearly with a unique Sample ID, and complete the sample questionnaire\u003c\/li\u003e\n\u003cli\u003eSend within 48 hours via the included pre-addressed 2-day Priority Mail package\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eHow It Works\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003ePurchase this test — we ship you a sample collection kit with all materials and a prepaid label\u003c\/li\u003e\n\u003cli\u003eCollect and send your soil sample to the ICL Specialty Fertilizers lab\u003c\/li\u003e\n\u003cli\u003eReceive your results by email\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225608458324,"sku":"MIN-SOIL-TST","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/untitled_20_9.jpg?v=1752678978"},{"product_id":"haifa-magnisal-magnesium-nitrate-11-0-0-fertilizer-50-lb","title":"Haifa Magnisal Magnesium Nitrate 11-0-0 Fertilizer 50 lb.","description":"\u003ch2\u003eCorrect Magnesium Deficiency Fast — Without Compromising Nitrogen\u003c\/h2\u003e\n\u003cp\u003eHaifa Magnisal is a fully water-soluble magnesium nitrate fertilizer (11-0-0 + 9.6% Mg) engineered for professional growers who demand precision nutrition. Whether you're running a hydroponic system, fertigation line, or foliar spray program, Magnisal delivers two essential macronutrients in a single, highly soluble formulation.\u003c\/p\u003e\n\u003ch3\u003eWhy Growers Choose Magnisal\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-action nutrition:\u003c\/strong\u003e Nitrate-N enhances magnesium uptake efficiency, maximizing the value of every application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChloride-free formula:\u003c\/strong\u003e Safe for sensitive crops and high-value specialty plants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRapid absorption:\u003c\/strong\u003e Fully soluble flakes dissolve quickly — no residue, no clogging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application:\u003c\/strong\u003e Compatible with fertigation, drip irrigation, hydroponics, and foliar spray.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports photosynthesis:\u003c\/strong\u003e Magnesium is the central atom in chlorophyll — deficiency shows fast and costs yield.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCorrecting mid-season magnesium deficiency in field and greenhouse crops\u003c\/li\u003e\n\u003cli\u003eSupplemental Mg nutrition in hydroponic and soilless systems\u003c\/li\u003e\n\u003cli\u003eFoliar spray for rapid correction of visible deficiency symptoms\u003c\/li\u003e\n\u003cli\u003eBlending into custom fertigation programs alongside calcium and potassium sources\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTotal Nitrogen (N): 11% (Nitrate)\u003c\/li\u003e\n\u003cli\u003eMagnesium (Mg): 9.6% (Water Soluble)\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/haifa_magnisal_magnesium_nitrate_11-0-0_greenhouse_grade_soluble_fertilizer_label.pdf?v=1773177970\" target=\"_blank\" title=\"Haifa Magnisal magnesium nitrate 11-0-0 fertilizer label\" rel=\"noopener\"\u003eLABEL\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Magnisal_fact_sheet.pdf?v=1773177970\" target=\"_blank\" title=\"Haifa Magnisal Technical Data Sheet (fact sheet)\" rel=\"noopener\"\u003eFACT SHEET\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Magnisal_SDS.pdf?v=1773177970\" target=\"_blank\" title=\"Haifa Magnisal magnesium nitrate Safety Data Sheet\" rel=\"noopener\"\u003eSDS\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePackaged in a 50 lb. bag. Suitable for commercial greenhouse, nursery, hydroponic, and field crop production.\u003c\/p\u003e","brand":"Haifa Fertilizers","offers":[{"title":"Default Title","offer_id":42225609637972,"sku":"MAGNISAL-50lb.","price":36.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/rn-image_picker_lib_temp_5d6b0133-1f3d-4be1-b30b-88759f23f1e7.webp?v=1776021781"},{"product_id":"magnesium-sulfate-1-lb","title":"Magnesium Sulfate 1 lb.","description":"\u003ch2\u003eMagnesium Sulfate Heptahydrate – 1 lb\u003c\/h2\u003e\u003cp\u003eAgricultural-grade magnesium sulfate (MgSO4·7H2O) is a high-purity, highly soluble source of magnesium and sulfur — essential nutrients for healthy plant growth. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1 lb in resealable plastic container\u003c\/li\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225609867348,"sku":"Epsom-1lb.","price":1.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/one_pound_short_jar_image_magnesium_sulfate_epsom.png?v=1752678994"},{"product_id":"magnesium-sulfate-20-lb","title":"Magnesium Sulfate Heptahydrate (Epsom Salt) - 20 lb","description":"\u003ch2\u003eMagnesium Sulfate Heptahydrate – 20 lb\u003c\/h2\u003e\u003cp\u003eAgricultural-grade magnesium sulfate (MgSO4·7H2O) is a high-purity, highly soluble source of magnesium and sulfur — essential nutrients for healthy plant growth. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e20 lb pail\u003c\/li\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225609900116,"sku":"Epsom-2gal-20lb.","price":14.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/2_gallon_bucket_20_pound_image_magnesium_sulfate_epsom.png?v=1752678995"},{"product_id":"magnesium-sulfate-40-lb","title":"Magnesium Sulfate Heptahydrate (Epsom Salt) - 40 lb","description":"\u003ch2\u003eMagnesium Sulfate Heptahydrate – 40 lb\u003c\/h2\u003e\u003cp\u003eAgricultural-grade magnesium sulfate (MgSO4·7H2O) is a high-purity, highly soluble source of magnesium and sulfur — essential nutrients for healthy plant growth. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e40 lb bucket\u003c\/li\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225609932884,"sku":"Epsom-5gal-40lb.","price":28.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/5_gallon_bucket_40_pound_image_magnesium_sulfate_epaom.png?v=1752678996"},{"product_id":"magriculture-magnesium-sulfate-50-lb","title":"Magriculture Magnesium Sulfate Heptahydrate 50 lb","description":"\u003ch2\u003eMagriculture Magnesium Sulfate Heptahydrate – 50 lb\u003c\/h2\u003e\u003cp\u003eGiles Chemical's Magriculture is a premium agricultural-grade magnesium sulfate (MgSO4·7H2O) — a highly soluble, bioavailable source of magnesium and sulfur for professional growers. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e50 lb bag\u003c\/li\u003e\u003c\/ul\u003e","brand":"Giles Chemical","offers":[{"title":"Default Title","offer_id":42225609998420,"sku":"EPSOM-50lb.","price":26.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/giles_20magriculture_20magnesium_20sulfate_20fertilizer_2050_20lb.jpg?v=1752678997"},{"product_id":"magnesium-sulfate-4-lb","title":"Magnesium Sulfate 4 lb.","description":"\u003ch2\u003eMagnesium Sulfate Heptahydrate – 4 lb\u003c\/h2\u003e\u003cp\u003eAgricultural-grade magnesium sulfate (MgSO4·7H2O) is a high-purity, highly soluble source of magnesium and sulfur — essential nutrients for healthy plant growth. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e4 lb in resealable plastic jar\u003c\/li\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225610031188,"sku":"Epsom-4lb.","price":6.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/four_pound_short_jar_image_magnesium_sulfate_epsom.png?v=1752678998"},{"product_id":"giles-magriculture-omri-organic-epsom-fertilizer-full-pallet","title":"Magriculture Magnesium Sulfate Full Pallet","description":"\u003ch2\u003eMagriculture Magnesium Sulfate Heptahydrate – Full Pallet\u003c\/h2\u003e\u003cp\u003eGiles Chemical's Magriculture is a premium agricultural-grade magnesium sulfate (MgSO4·7H2O) — a highly soluble, bioavailable source of magnesium and sulfur for professional growers. OMRI listed for certified organic production.\u003c\/p\u003e\u003ch3\u003eAnalysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMagnesium (Mg): 9.5%\u003c\/li\u003e\n\u003cli\u003eSulfur (S): 12.5%\u003c\/li\u003e\n\u003cli\u003e1 gram per gallon yields 25 ppm Mg and 33 ppm S\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic growing\u003c\/li\u003e\n\u003cli\u003eExtremely high water solubility for true clear solutions\u003c\/li\u003e\n\u003cli\u003eCompatible with most soluble nutrient programs (except concentrated calcium or phosphorus solutions)\u003c\/li\u003e\n\u003cli\u003eMagnesium is the central element in the chlorophyll molecule — critical for photosynthesis and energy conversion\u003c\/li\u003e\n\u003cli\u003eEspecially important in sandy soils, low-CEC soils, and high-K or high-ammonium-N programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eIdeal Application Methods\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eHydroponic nutrient solutions\u003c\/li\u003e\n\u003cli\u003eFertigation: center pivot, drip\/trickle, micro-jet\u003c\/li\u003e\n\u003cli\u003eFoliar spray programs\u003c\/li\u003e\n\u003cli\u003eSoil amendment for Mg-deficient fields\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePackaging\u003c\/h3\u003e\u003cul\u003e\u003cli\u003eFull pallet: 49 × 50 lb bags (2,450 lbs total)\u003c\/li\u003e\u003c\/ul\u003e","brand":"Giles Chemical","offers":[{"title":"Default Title","offer_id":42225610063956,"sku":"Giles-Magriculture-49x50lb.","price":1224.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Organic_EPSOM_palletlarge_20optimized.jpg?v=1752678998"},{"product_id":"peters-professional-s-t-e-m-25-lb","title":"Peters Professional S.T.E.M. 25 lb.","description":"\u003ch1 align=\"left\"\u003eSoluble Trace Element Mixture (STEM) fertilizer.\u003c\/h1\u003e\n\u003ch2\u003eA fully water soluble fertilizer and broad spectrum minor element product that is ideal for \"quick fixes\" on container plants. Can be used for corrective purposes on micronutrient deficient crops. It can also be applied as a remedial foliar spray on ornamental plants like: potted tropical foliage, flowering plants, cut flowers and orchids.\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eThe industry standard trace element supplement for over 40 years\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eFor corrective foliar sprays test rates of ¼ to 1 teaspoon\/gallon of water before use on whole crop\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eSulfate nutrients provide additional sulfur\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eIdeal broad spectrum minor element product for “quick fix” needs\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eTotally soluble.\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eOne time corrective application: use 0.5 lb.\/100 gal. finished solution\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv align=\"left\"\u003eContinuous feeding: apply lb. (oz.) S.T.E.M. per 100 lb. of listed %N fertilizer\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Peter's Professional S.T.E.M. data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/STEM-_DATA-SHEET-PETERS-PRO-7732325285972.pdf?v=1755601005\" target=\"_blank\"\u003ePeter's Professional S.T.E.M. data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/stem_sds-7732325285972.pdf?v=1755601075\" target=\"_blank\"\u003e STEM_MSDS.pdf \u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp align=\"left\"\u003e \u003c\/p\u003e","brand":"Peters Professional","offers":[{"title":"Default Title","offer_id":42225610555476,"sku":"S.T.E.M.-25lb.","price":86.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/stem_20fertilizer.jpg?v=1752679002"},{"product_id":"potassium-chloride-1-lb","title":"Potassium Chloride 1 lb.","description":"\u003cp\u003e   Potassium Chloride with 62% K20 and 47% Chloride. One gram in one gallon of water yeilds 136ppm Potassium and 124ppm Chloride.\u003c\/p\u003e  \u003cp\u003e   May also be used to make up storage solution for pH\/TDS meter probes.\u003c\/p\u003e  \u003cp\u003e    \u003c\/p\u003e  \u003cp\u003e   sold in one pound (454 gram) container.\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225610621012,"sku":"Potassium-Chloride-1lb.","price":7.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/one_pound_short_jar_image_potassium_chloride.png?v=1752679002"},{"product_id":"potassium-chloride-20-lb","title":"Potassium Chloride 20 lb.","description":"\u003cp\u003ePotassium Chloride with 62% K20 and 47% Chloride. One gram in one gallon of water yeilds 136ppm Potassium and 124ppm Chloride.\u003c\/p\u003e    \u003cp\u003eMay also be used to make up storage solution for pH\/TDS meter probes.\u003c\/p\u003e    \u003cp\u003e \u003c\/p\u003e    \u003cp\u003esold in 20 pound plastic bucket.\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225610784852,"sku":"Potassium-Chloride-20lb.","price":27.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/2_gallon_bucket_20_pound_image_potassium_chloride.png?v=1752679004"},{"product_id":"potassium-chloride-0-0-62-fertilizer-50-lb","title":"Potassium Chloride 0-0-62 fertilizer 50 lb.","description":"\u003ch2\u003eHigh-Analysis Water-Soluble Potassium for Any Growing System\u003c\/h2\u003e\u003cp\u003ePotassium Chloride (MOP) 0-0-62 is one of the most concentrated and cost-effective sources of soluble potassium available. With 62% K2O and 47% chloride, this fine powder dissolves completely in water — making it ideal for fertigation, drip irrigation, hydroponics, and greenhouse applications where rapid potassium delivery is needed.\u003c\/p\u003e\u003cp\u003eA versatile staple in professional nutrient programs, it can also be used to prepare storage and calibration solutions for pH and TDS\/EC meter probes.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Analysis 0-0-62:\u003c\/strong\u003e One of the most concentrated potassium sources available — more K per dollar than most alternatives.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Water-Soluble:\u003c\/strong\u003e Fine powder dissolves completely with no residue — safe for drip emitters and injection systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Potassium Delivery:\u003c\/strong\u003e Rapidly corrects potassium deficiency and supports fruiting, flowering, and root development.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad Application Compatibility:\u003c\/strong\u003e Suitable for hydroponics, soil, greenhouse, and field crop programs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Use:\u003c\/strong\u003e Can be used to prepare DIY storage solution for pH and TDS\/EC meter probes (1g per gallon = 136 ppm K, 124 ppm Cl). \u003ca href=\"https:\/\/www.brunwater.com\/articles\/create-your-own-ph-probe-storage-solution\" target=\"_blank\" rel=\"noopener noreferrer\"\u003eLearn how to make your own pH probe storage solution →\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFertigation and drip irrigation programs\u003c\/li\u003e\n\u003cli\u003eHydroponic and soilless nutrient solutions\u003c\/li\u003e\n\u003cli\u003eGreenhouse and field crop potassium supplementation\u003c\/li\u003e\n\u003cli\u003epH and TDS\/EC meter probe storage solution preparation\u003c\/li\u003e\n\u003cli\u003eBlending into custom NPK programs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eSoluble Potash (K2O): 62%\u003c\/li\u003e\n\u003cli\u003eChloride (Cl): 47%\u003c\/li\u003e\n\u003cli\u003eSolubility: 1g per gallon yields 136 ppm K and 124 ppm Cl\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003ePackaged in a 50 lb. bag. \u003cstrong\u003eNote: Not for sale or shipment to Oregon.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Bumper Crop","offers":[{"title":"Default Title","offer_id":42225610817620,"sku":"Potassium-Chloride-50lb.","price":43.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/photoroom-20240621_163820.jpg?v=1752679004"},{"product_id":"potassium-chloride-4-lb","title":"Potassium Chloride 4 lb.","description":"\u003cp\u003e   Potassium Chloride with 62% K20 and 47% Chloride. One gram in one gallon of water yeilds 136ppm Potassium and 124ppm Chloride.\u003c\/p\u003e  \u003cp\u003e   May also be used to make up storage solution for pH\/TDS meter probes.\u003c\/p\u003e  \u003cp\u003e    \u003c\/p\u003e  \u003cp\u003e   sold in 4 pound reclosable plastic jar.\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225610850388,"sku":"Potassium-Chloride-4lb.","price":10.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/four_pound_short_jar_image_potassium_chloride.png?v=1752679005"},{"product_id":"potassium-silicate-fertilizer-1-lb","title":"AgSil 16H Potassium Silicate 1 lb","description":"\u003ch2\u003eAgSil 16H Potassium Silicate by PQ Corporation — 1 lb Re-Closable Container\u003c\/h2\u003e\n\u003cp\u003eAgSil 16H is the professional standard for water-soluble potassium silicate supplementation in commercial agriculture, hydroponics, and greenhouse production. This 1 lb re-closable container is ideal for home growers, small-scale operations, and growers trialing potassium silicate for the first time. A hydrous potassium silicate powder with a 1.6 weight ratio (SiO₂:K₂O), AgSil 16H delivers \u003cstrong\u003e32% K₂O\u003c\/strong\u003e, \u003cstrong\u003e52.8% SiO₂\u003c\/strong\u003e, and \u003cstrong\u003e17.37% soluble silicon\u003c\/strong\u003e (AAPFCO approved method) — making it one of the most concentrated and analytically verified potassium silicate products available.\u003c\/p\u003e\n\u003cp\u003eCompatible with fertigation, foliar, hydroponic, and soil applications across row crops, vine crops, ornamentals, turf, and greenhouse production.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral stress resistance\u003c\/strong\u003e — helps plants resist toxicity from phosphorus, manganese, aluminum, and iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate stress reduction\u003c\/strong\u003e — improves plant tolerance to environmental stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrought tolerance\u003c\/strong\u003e — reduces water loss through improved cell wall strength; may increase growth and yield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt tolerance\u003c\/strong\u003e — increases plant tolerance to elevated salt levels in the root zone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural improvement\u003c\/strong\u003e — improves leaf erectness, reduces lodging in grasses, and improves photosynthesis efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield enhancement\u003c\/strong\u003e — documented yield increases across multiple crop types in peer-reviewed research\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurf performance\u003c\/strong\u003e — faster, healthier greens and athletic fields through improved photosynthesis and structural integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemistry \u0026amp; Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hydrous potassium silicate powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight ratio:\u003c\/strong\u003e 1.6 (SiO₂ : K₂O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK₂O:\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiO₂:\u003c\/strong\u003e 52.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH₂O:\u003c\/strong\u003e 14.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoluble Silicon:\u003c\/strong\u003e 17.37% (AAPFCO approved method, laboratory verified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication rate:\u003c\/strong\u003e 0.7 g per gallon of water yields 98 ppm SiO₂ (46 ppm Si) and 49 ppm K\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNever mix concentrated silicon solutions with other concentrated fertilizers.\u003c\/strong\u003e Always dilute AgSil 16H separately before combining with other nutrients in your feed program.\u003c\/p\u003e\n\n\u003ch3\u003eDocuments \u0026amp; References\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_tech_potassium-silicate-7732325875796.pdf?v=1755602306\" title=\"AgSil Technical Report\" target=\"_blank\" rel=\"noopener\"\u003eAgSil Technical Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil16H_label_CERTIS-7732325875796.pdf?v=1755602390\" title=\"AgSil 16H Fertilizer Label\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Fertilizer Label (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/AgSil_16h_MSDS-7732325875796.pdf?v=1755602486\" title=\"AgSil 16H Safety Data Sheet\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Safety Data Sheet \/ MSDS (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/CDFA_Fertilizer_Product_Database_AGSIL_16H-7732325875796.pdf?v=1755602591\" title=\"CDFA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eCDFA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_16h_heavy_metals_analysis_washington_state_database-7732325875796.pdf?v=1755602653\" title=\"WSDA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eWSDA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/download\/Soluble%20Silicon;%20Its%20Role%20in%20Crop%20and%20Disease%20Management%20of%20Greenhouse%20Crops.pdf\" title=\"Soluble Silicon in Crop and Disease Management\" target=\"_blank\"\u003eSoluble Silicon: Its Role in Crop \u0026amp; Disease Management of Greenhouse Crops (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225611178068,"sku":"AgSil-16h-1lb","price":19.8,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/photoroom-20240602_163439.jpg?v=1752679009"},{"product_id":"potassium-silicate-fertilizer-4-lb","title":"AgSil 16H Potassium Silicate | 4 lb Re-Closable Container","description":"\u003ch2\u003eAgSil 16H Potassium Silicate by PQ Corporation — 4 lb Re-Closable Container\u003c\/h2\u003e\n\u003cp\u003eAgSil 16H is the professional standard for water-soluble potassium silicate supplementation in commercial agriculture, hydroponics, and greenhouse production. The 4 lb re-closable container is ideal for hobbyist growers, boutique operations, and commercial growers running smaller fertigation programs who want a reliable supply without committing to bulk quantities. A hydrous potassium silicate powder with a 1.6 weight ratio (SiO₂:K₂O), AgSil 16H delivers \u003cstrong\u003e32% K₂O\u003c\/strong\u003e, \u003cstrong\u003e52.8% SiO₂\u003c\/strong\u003e, and \u003cstrong\u003e17.37% soluble silicon\u003c\/strong\u003e (AAPFCO approved method) — making it one of the most concentrated and analytically verified potassium silicate products available.\u003c\/p\u003e\n\u003cp\u003eCompatible with fertigation, foliar, hydroponic, and soil applications across row crops, vine crops, ornamentals, turf, and greenhouse production.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral stress resistance\u003c\/strong\u003e — helps plants resist toxicity from phosphorus, manganese, aluminum, and iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate stress reduction\u003c\/strong\u003e — improves plant tolerance to environmental stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrought tolerance\u003c\/strong\u003e — reduces water loss through improved cell wall strength; may increase growth and yield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt tolerance\u003c\/strong\u003e — increases plant tolerance to elevated salt levels in the root zone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural improvement\u003c\/strong\u003e — improves leaf erectness, reduces lodging in grasses, and improves photosynthesis efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield enhancement\u003c\/strong\u003e — documented yield increases across multiple crop types in peer-reviewed research\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurf performance\u003c\/strong\u003e — faster, healthier greens and athletic fields through improved photosynthesis and structural integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemistry \u0026amp; Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hydrous potassium silicate powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight ratio:\u003c\/strong\u003e 1.6 (SiO₂ : K₂O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK₂O:\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiO₂:\u003c\/strong\u003e 52.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH₂O:\u003c\/strong\u003e 14.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoluble Silicon:\u003c\/strong\u003e 17.37% (AAPFCO approved method, laboratory verified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication rate:\u003c\/strong\u003e 0.7 g per gallon of water yields 98 ppm SiO₂ (46 ppm Si) and 49 ppm K\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNever mix concentrated silicon solutions with other concentrated fertilizers.\u003c\/strong\u003e Always dilute AgSil 16H separately before combining with other nutrients in your feed program.\u003c\/p\u003e\n\n\u003ch3\u003eDocuments \u0026amp; References\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_tech_potassium-silicate-7732325875796.pdf?v=1755602306\" title=\"AgSil Technical Report\" target=\"_blank\" rel=\"noopener\"\u003eAgSil Technical Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil16H_label_CERTIS-7732325875796.pdf?v=1755602390\" title=\"AgSil 16H Fertilizer Label\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Fertilizer Label (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/AgSil_16h_MSDS-7732325875796.pdf?v=1755602486\" title=\"AgSil 16H Safety Data Sheet\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Safety Data Sheet \/ MSDS (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/CDFA_Fertilizer_Product_Database_AGSIL_16H-7732325875796.pdf?v=1755602591\" title=\"CDFA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eCDFA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_16h_heavy_metals_analysis_washington_state_database-7732325875796.pdf?v=1755602653\" title=\"WSDA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eWSDA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/download\/Soluble%20Silicon;%20Its%20Role%20in%20Crop%20and%20Disease%20Management%20of%20Greenhouse%20Crops.pdf\" title=\"Soluble Silicon in Crop and Disease Management\" target=\"_blank\"\u003eSoluble Silicon: Its Role in Crop \u0026amp; Disease Management of Greenhouse Crops (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225611440212,"sku":"AgSil-16h-4lb","price":45.34,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/photoroom-20240602_163043.jpg?v=1753078661"},{"product_id":"potassium-silicate-fertilizer-20-lb","title":"AgSil 16H Potassium Silicate 20 lb","description":"\u003ch2\u003eAgSil 16H Potassium Silicate by PQ Corporation — 20 lb Bucket\u003c\/h2\u003e\n\u003cp\u003eAgSil 16H is the professional standard for water-soluble potassium silicate supplementation in commercial agriculture, hydroponics, and greenhouse production. The 20 lb 3.5-gallon plastic bucket is ideal for mid-scale commercial operations, multi-site growers, and facilities that run silicon supplementation as a core part of their nutrient program. A hydrous potassium silicate powder with a 1.6 weight ratio (SiO₂:K₂O), AgSil 16H delivers \u003cstrong\u003e32% K₂O\u003c\/strong\u003e, \u003cstrong\u003e52.8% SiO₂\u003c\/strong\u003e, and \u003cstrong\u003e17.37% soluble silicon\u003c\/strong\u003e (AAPFCO approved method) — making it one of the most concentrated and analytically verified potassium silicate products available.\u003c\/p\u003e\n\u003cp\u003eCompatible with fertigation, foliar, hydroponic, and soil applications across row crops, vine crops, ornamentals, turf, and greenhouse production.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral stress resistance\u003c\/strong\u003e — helps plants resist toxicity from phosphorus, manganese, aluminum, and iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate stress reduction\u003c\/strong\u003e — improves plant tolerance to environmental stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrought tolerance\u003c\/strong\u003e — reduces water loss through improved cell wall strength; may increase growth and yield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt tolerance\u003c\/strong\u003e — increases plant tolerance to elevated salt levels in the root zone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural improvement\u003c\/strong\u003e — improves leaf erectness, reduces lodging in grasses, and improves photosynthesis efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield enhancement\u003c\/strong\u003e — documented yield increases across multiple crop types in peer-reviewed research\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurf performance\u003c\/strong\u003e — faster, healthier greens and athletic fields through improved photosynthesis and structural integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemistry \u0026amp; Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hydrous potassium silicate powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight ratio:\u003c\/strong\u003e 1.6 (SiO₂ : K₂O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK₂O:\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiO₂:\u003c\/strong\u003e 52.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH₂O:\u003c\/strong\u003e 14.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoluble Silicon:\u003c\/strong\u003e 17.37% (AAPFCO approved method, laboratory verified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication rate:\u003c\/strong\u003e 0.7 g per gallon of water yields 98 ppm SiO₂ (46 ppm Si) and 49 ppm K\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNever mix concentrated silicon solutions with other concentrated fertilizers.\u003c\/strong\u003e Always dilute AgSil 16H separately before combining with other nutrients in your feed program.\u003c\/p\u003e\n\n\u003ch3\u003eDocuments \u0026amp; References\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_tech_potassium-silicate-7732325875796.pdf?v=1755602306\" title=\"AgSil Technical Report\" target=\"_blank\" rel=\"noopener\"\u003eAgSil Technical Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil16H_label_CERTIS-7732325875796.pdf?v=1755602390\" title=\"AgSil 16H Fertilizer Label\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Fertilizer Label (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/AgSil_16h_MSDS-7732325875796.pdf?v=1755602486\" title=\"AgSil 16H Safety Data Sheet\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Safety Data Sheet \/ MSDS (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/CDFA_Fertilizer_Product_Database_AGSIL_16H-7732325875796.pdf?v=1755602591\" title=\"CDFA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eCDFA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_16h_heavy_metals_analysis_washington_state_database-7732325875796.pdf?v=1755602653\" title=\"WSDA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eWSDA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/download\/Soluble%20Silicon;%20Its%20Role%20in%20Crop%20and%20Disease%20Management%20of%20Greenhouse%20Crops.pdf\" title=\"Soluble Silicon in Crop and Disease Management\" target=\"_blank\"\u003eSoluble Silicon: Its Role in Crop \u0026amp; Disease Management of Greenhouse Crops (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PQ Corporation","offers":[{"title":"Default Title","offer_id":42225611472980,"sku":"AgSil-16h-20lb","price":156.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_2020_20pound_20bucket_20no_20bkgr-optimized.jpg?v=1752679010"},{"product_id":"agsil-16h-potassium-silicate-fertilizer-50-lb","title":"AgSil 16H Potassium Silicate 50 lb","description":"\u003ch2\u003eAgSil 16H Potassium Silicate by PQ Corporation — 50 lb Bag\u003c\/h2\u003e\n\u003cp\u003eAgSil 16H is the professional standard for water-soluble potassium silicate supplementation in commercial agriculture, hydroponics, and greenhouse production. A hydrous potassium silicate powder with a 1.6 weight ratio (SiO₂:K₂O), AgSil 16H delivers \u003cstrong\u003e32% K₂O\u003c\/strong\u003e, \u003cstrong\u003e52.8% SiO₂\u003c\/strong\u003e, and \u003cstrong\u003e17.37% soluble silicon\u003c\/strong\u003e (AAPFCO approved method) — making it one of the most concentrated and analytically verified potassium silicate products available.\u003c\/p\u003e\n\u003cp\u003eCompatible with fertigation, foliar, hydroponic, and soil applications across row crops, vine crops, ornamentals, turf, and greenhouse production.\u003c\/p\u003e\n\n\u003ch3\u003ePerformance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMineral stress resistance\u003c\/strong\u003e — helps plants resist toxicity from phosphorus, manganese, aluminum, and iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClimate stress reduction\u003c\/strong\u003e — improves plant tolerance to environmental stress\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrought tolerance\u003c\/strong\u003e — reduces water loss through improved cell wall strength; may increase growth and yield\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSalt tolerance\u003c\/strong\u003e — increases plant tolerance to elevated salt levels in the root zone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStructural improvement\u003c\/strong\u003e — improves leaf erectness, reduces lodging in grasses, and improves photosynthesis efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYield enhancement\u003c\/strong\u003e — documented yield increases across multiple crop types in peer-reviewed research\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTurf performance\u003c\/strong\u003e — faster, healthier greens and athletic fields through improved photosynthesis and structural integrity\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eChemistry \u0026amp; Analysis\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Hydrous potassium silicate powder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight ratio:\u003c\/strong\u003e 1.6 (SiO₂ : K₂O)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eK₂O:\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSiO₂:\u003c\/strong\u003e 52.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eH₂O:\u003c\/strong\u003e 14.8%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoluble Silicon:\u003c\/strong\u003e 17.37% (AAPFCO approved method, laboratory verified)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication rate:\u003c\/strong\u003e 0.7 g per gallon of water yields 98 ppm SiO₂ (46 ppm Si) and 49 ppm K\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplication Notes\u003c\/h3\u003e\n\u003cp\u003e⚠️ \u003cstrong\u003eNever mix concentrated silicon solutions with other concentrated fertilizers.\u003c\/strong\u003e Always dilute AgSil 16H separately before combining with other nutrients in your feed program.\u003c\/p\u003e\n\u003cp\u003eAlso available in \u003ca href=\"https:\/\/customhydronutrients.com\/AgSil-16h-Unavailable-Here%E2%80%99s-How-to-Use-AgSil-25-Instead_b_24.html\"\u003eAgSil 25 liquid formulation\u003c\/a\u003e if powder is unavailable.\u003c\/p\u003e\n\n\u003ch3\u003eDocuments \u0026amp; References\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_tech_potassium-silicate-7732325875796.pdf?v=1755602306\" title=\"AgSil Technical Report\" target=\"_blank\" rel=\"noopener\"\u003eAgSil Technical Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil16H_label_CERTIS-7732325875796.pdf?v=1755602390\" title=\"AgSil 16H Fertilizer Label\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Fertilizer Label (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/AgSil_16h_MSDS-7732325875796.pdf?v=1755602486\" title=\"AgSil 16H Safety Data Sheet\" target=\"_blank\" rel=\"noopener\"\u003eAgSil 16H Safety Data Sheet \/ MSDS (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/CDFA_Fertilizer_Product_Database_AGSIL_16H-7732325875796.pdf?v=1755602591\" title=\"CDFA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eCDFA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_16h_heavy_metals_analysis_washington_state_database-7732325875796.pdf?v=1755602653\" title=\"WSDA Registration and Heavy Metals Report\" target=\"_blank\" rel=\"noopener\"\u003eWSDA Registration \u0026amp; Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"\/download\/Soluble%20Silicon;%20Its%20Role%20in%20Crop%20and%20Disease%20Management%20of%20Greenhouse%20Crops.pdf\" title=\"Soluble Silicon in Crop and Disease Management\" target=\"_blank\"\u003eSoluble Silicon: Its Role in Crop \u0026amp; Disease Management of Greenhouse Crops (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PQ Corporation","offers":[{"title":"Default Title","offer_id":42225611505748,"sku":"AgSil-16H-50lb.","price":337.16,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/agsil_20bag_20angled.jpg?v=1753078661"},{"product_id":"5-11-26-hydroponic-special-fertilizer-1-lb","title":"5-11-26 Hydroponic Special fertilizer 1 lb.","description":"\u003ch3\u003e5-11-26 Hydroponic Special — Classic Hydroponic Fertilizer with Chelated Trace Elements\u003c\/h3\u003e\u003cp\u003eThe original formula designed exclusively for hydroponic culture. The standard in hydroponic greenhouses for decades — ideal for most hydroponic crops, especially tomatoes, cucumbers, and lettuce. Repacked and sold in a reclosable 1 lb container.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOriginal formula — accept no substitutes\u003c\/li\u003e\n\u003cli\u003eFlexible B (Base) formulation — easily augmented to meet unique plant needs\u003c\/li\u003e\n\u003cli\u003eEffective for all water types\u003c\/li\u003e\n\u003cli\u003epH buffered to help maintain acceptable working solution pH\u003c\/li\u003e\n\u003cli\u003eMaximum solubility: 4 lb\/gal\u003c\/li\u003e\n\u003cli\u003eUse with Calcium Nitrate and Magnesium Sulfate for a complete hydroponic nutrient solution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G99390_Peters_Professional_5-11-26_Hydroponic_Special_label.pdf?v=1776205227\" target=\"_blank\"\u003e5-11-26 Hydroponic Special Label (jar)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G99390_Peters_Pro_5-11-26_HS-bag_label.pdf?v=1776205286\" target=\"_blank\"\u003e5-11-26 Hydroponic Special Label (bag)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/5-11-26_hydroponic_special_msds.pdf?v=1776205227\" target=\"_blank\"\u003eSafety Data Sheet (SDS)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225611538516,"sku":"Hydro-Spec-1lb","price":11.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/image_cd50b46a-8c02-4f44-9692-88093c2b45e8.png?v=1776206391"},{"product_id":"5-11-26-hydroponic-special-fertilizer-4-lb","title":"5-11-26 Hydroponic Special fertilizer 4 lb.","description":"\u003ch3\u003e5-11-26 Hydroponic Special — Classic Hydroponic Fertilizer with Chelated Trace Elements\u003c\/h3\u003e\u003cp\u003eThe original formula designed exclusively for hydroponic culture. The standard in hydroponic greenhouses for decades — ideal for most hydroponic crops, especially tomatoes, cucumbers, and lettuce. Repacked and sold in a reclosable 4 lb container.\u003c\/p\u003e\u003ch3\u003eKey Benefits\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOriginal formula — accept no substitutes\u003c\/li\u003e\n\u003cli\u003eFlexible B (Base) formulation — easily augmented to meet unique plant needs\u003c\/li\u003e\n\u003cli\u003eEffective for all water types\u003c\/li\u003e\n\u003cli\u003epH buffered to help maintain acceptable working solution pH\u003c\/li\u003e\n\u003cli\u003eMaximum solubility: 4 lb\/gal\u003c\/li\u003e\n\u003cli\u003eUse with Calcium Nitrate and Magnesium Sulfate for a complete hydroponic nutrient solution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDocuments\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G99390_Peters_Professional_5-11-26_Hydroponic_Special_label.pdf?v=1776205227\" target=\"_blank\"\u003e5-11-26 Hydroponic Special Label (jar)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G99390_Peters_Pro_5-11-26_HS-bag_label.pdf?v=1776205286\" target=\"_blank\"\u003e5-11-26 Hydroponic Special Label (bag)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/5-11-26_hydroponic_special_msds.pdf?v=1776205227\" target=\"_blank\"\u003eSafety Data Sheet (SDS)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225612030036,"sku":"Hydro-Spec-4lb","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/image_5c767d7a-8210-4cb0-9f37-5bfcd9940471.png?v=1776206860"},{"product_id":"peters-professional-5-11-26-hydroponic-special-fertilizer-25-lb","title":"Peters Professional 5-11-26 Hydroponic Special Fertilizer - 25 lb","description":"\u003cp\u003e\u003cstrong\u003eThe original water-soluble hydroponic fertilizer with chelated trace elements.\u003c\/strong\u003e Peters Professional 5-11-26 Hydroponic Special has been the commercial standard for hydroponic crop production since its introduction. Formulated specifically for soilless culture systems.\u003c\/p\u003e\n\n\u003ch2\u003eProven Performance for Commercial Crops\u003c\/h2\u003e\n\u003cp\u003eDesigned exclusively for hydroponic production of tomatoes, cucumbers, lettuce, and specialty crops. This flexible B-component formula pairs with calcium nitrate in your A-stock tank to create a complete nutrient solution. The buffered formulation helps maintain optimal working solution pH across all water types.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eComplete NPK formula (5-11-26) with chelated micronutrients\u003c\/li\u003e\n\u003cli\u003eSupplies essential sulfur for protein synthesis and enzyme function\u003c\/li\u003e\n\u003cli\u003eBuffered to stabilize solution pH\u003c\/li\u003e\n\u003cli\u003eMaximum solubility: 3 lb\/gallon\u003c\/li\u003e\n\u003cli\u003eEasily modified to meet crop-specific requirements\u003c\/li\u003e\n\u003cli\u003eEffective across all water quality profiles\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplication\u003c\/h2\u003e\n\u003cp\u003eUse as the B-component in a two-part hydroponic nutrient system. Pair with calcium nitrate (A-component) according to your crop protocol and growth stage. Suitable for NFT, DWC, drip irrigation, and other hydroponic methods.\u003c\/p\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePackage size: 25 lb bag\u003c\/li\u003e\n\u003cli\u003eFull pallet: 80 bags (2,000 lb)\u003c\/li\u003e\n\u003cli\u003eBarcode: 848264003814\u003c\/li\u003e\n\u003cli\u003eSKU: Hydro-Spec-25lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Documentation\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/g99390_peters_pro_5-11-26_hs-7732326006868.pdf?v=1755603124\" title=\"Product Label\" target=\"_blank\" rel=\"noopener\"\u003eProduct Label (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/g99390_peters_professional_5-11-26_hydroponic_special_product_sheet-7732326006868.pdf?v=1755603182\" title=\"Technical Specifications\" target=\"_blank\" rel=\"noopener\"\u003eTechnical Specification Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/5-11-26_hydroponic_special_msds-7732326006868.pdf?v=1755603255\" title=\"Safety Data Sheet\" target=\"_blank\" rel=\"noopener\"\u003eSafety Data Sheet (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/WSDA-HEAVY-METALS-REPORT-Peters_Pro_Hydroponic_Special_5-11-26-7732326006868.pdf?v=1755603326\" title=\"Heavy Metals Analysis\" target=\"_blank\" rel=\"noopener\"\u003eWSDA Heavy Metals Report (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ICL Specialty Fertilizers","offers":[{"title":"Default Title","offer_id":42225612062804,"sku":"Hydro-Spec-25lb","price":51.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/hydro-spec-25lb.jpg?v=1773363700"},{"product_id":"micromax-50-lb","title":"ICL Micromax Granular Micronutrients | 50 lb","description":"\u003ch2\u003eHomogeneous Granular Micronutrient Package for Nursery \u0026amp; Greenhouse Production\u003c\/h2\u003e\n\u003cp\u003eICL Specialty Fertilizers' Micromax® is the industry-standard granular micronutrient fertilizer for professional nursery and greenhouse growers. Unlike blended micronutrient products where segregation causes uneven distribution, Micromax uses a homogeneous granule — every single granule contains the full spectrum of secondary and micronutrients listed on the label. The result is consistent, predictable micronutrient delivery throughout the root zone, every time.\u003c\/p\u003e\n\u003cp\u003eFormulated with sulfated elements for optimum plant uptake, Micromax is designed to complement and amplify your primary NPK program — filling the micronutrient gaps that limit growth even when macronutrients are adequate.\u003c\/p\u003e\n\u003ch3\u003eNutrient Profile\u003c\/h3\u003e\n\u003cp\u003eMicromax delivers a complete micronutrient package including iron (Fe), manganese (Mn), zinc (Zn), copper (Cu), boron (B), and molybdenum (Mo) in every granule. See the \u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G90505_Micromax_Granular_Product_Info_Sheet-7732326039636.pdf?v=1755603447\" target=\"_blank\"\u003e\u003cstrong\u003etechnical specification sheet\u003c\/strong\u003e\u003c\/a\u003e for the full guaranteed analysis.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHomogeneous granule\u003c\/strong\u003e — every granule contains all listed nutrients; eliminates segregation and ensures uniform distribution when mixed into growing media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfated micronutrients\u003c\/strong\u003e — sulfate forms maximize plant availability and uptake efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad-spectrum coverage\u003c\/strong\u003e — addresses iron, manganese, zinc, copper, boron, and molybdenum deficiencies in a single input\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGreenhouse \u0026amp; nursery proven\u003c\/strong\u003e — trusted by professional growers for container, plug, and soilless production systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoilless media compatible\u003c\/strong\u003e — ideal for pre-charging peat, bark, and coir-based substrates before planting\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eRecommended Uses\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePre-plant incorporation into soilless growing media\u003c\/li\u003e\n\u003cli\u003eGeneral nursery and greenhouse container production\u003c\/li\u003e\n\u003cli\u003ePlug and propagation tray programs requiring consistent micronutrient baseline\u003c\/li\u003e\n\u003cli\u003eSupplementing primary NPK programs where micronutrient deficiencies are observed or anticipated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e50 lb bag.\u003c\/strong\u003e SKU: G90505.\u003c\/p\u003e\n","brand":"ICL Specialty Fertilizers","offers":[{"title":"Default Title","offer_id":42225612095572,"sku":"ICL-MICROMAX-50LB","price":100.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/G90505.jpg?v=1774386545"},{"product_id":"iron-sulfate-hi-yield-4-lb","title":"Iron Sulfate Hi Yield 4 lb.","description":"\u003ch1\u003eIron Sulfate, Hi Yield Copperas, 4 pound\u003c\/h1\u003e    \u003cp\u003eFormulation: iron sulphate. Recommended for the prevention and correction of plant chlorosis caused by iron deficiency. Aids in creating an acid soil condition.\u003c\/p\u003e","brand":"High Yield Products","offers":[{"title":"Default Title","offer_id":42225612128340,"sku":"Iron-Sulfate-Hi-Yield-4lb.","price":10.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Iron_20sulfate_Copperaslarge_20optimized.jpg?v=1752679016"},{"product_id":"iron-sulfate-heptahydrate-1-lb","title":"Iron Sulfate Heptahydrate 1 lb.","description":"\u003ch1 style=\"font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 1.5em; margin: 0px 0px 5px; padding: 0px; border: 0px; vertical-align: baseline; clear: both; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003eIron Sulfate fertilizer one pound container\u003c\/h1\u003e\u003ch2\u003eFine powder fully soluble in water for use in fertigation and hydroponic nutrient solutions.\u003c\/h2\u003e\u003ch3\u003e20% Iron and 12% Sulfur\u003c\/h3\u003e  \u003ch3 style=\"border: 0px; margin: 0px 0px 5px; padding: 0px; vertical-align: baseline; clear: both; font-weight: normal; font-size: 18px; color: rgb(7, 77, 48); line-height: 1.5em; font-family: Tahoma, Verdana, sans-serif; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e    \u003c\/h3\u003e  \u003ch1 style=\"font-family: Georgia, Times, serif; font-size: 24px; line-height: 1.5em; font-weight: normal; color: rgb(7, 77, 48); margin: 0px 0px 5px; padding: 0px; border: 0px; vertical-align: baseline; clear: both; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e    \u003c\/h1\u003e  \u003cp style=\"color: rgb(51, 51, 51); margin: 0px 0px 15px; padding: 0px; border: 0px; vertical-align: baseline; font-family: Tahoma, Verdana, sans-serif; font-size: 13px; line-height: 19.5px; text-align: center; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e   \u003cspan style=\"font-size: 11px; text-align: center; line-height: 1.5em; font-family: 'comic sans ms', cursive;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003eFerrous Sulfate Heptahydrate - Untreated-\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 11px; text-align: center; line-height: 1.5em; font-family: 'comic sans ms', cursive;\"\u003ePRODUCT MAY CAKE OVER TIME\u003c\/span\u003e\u003c\/p\u003e  \u003ctable align=\"center\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width: 90%\" summary=\"Solu-Grade Iron Sulfate Typical Analysis\"\u003e   \u003ccaption\u003e    Solu-Grade Iron Sulfate Typical Analysis\u003c\/caption\u003e   \u003ctbody\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      Assay 99.6% Min.\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      Ferrous Iron 20.0% Min.\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      Insoluble Substances 0.1% Max.\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      Sulfur 12.0% Min\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      pH 5% solution: 2.5-5.0\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      \u003cp\u003e       Particle Size Range -7 +60 mesh\u003c\/p\u003e      \u003cp\u003e       90% thru 10 mesh pass-100% thru 4 mesh pass\u003c\/p\u003e     \u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e      Bulk Density 55 lb\/cu ft.\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\"\u003e      \u003cp style=\"text-align: center;\"\u003e       \u003cspan style=\"font-family: 'comic sans ms', cursive;\"\u003etypical heavy metals data in ppm: arsenic \u0026lt;0.2, lead \u0026lt;2, cadmium \u0026lt;3, mercury \u0026lt;0.05, chromium \u0026lt;40, nickel \u0026lt;150, copper \u0026lt;30, zinc \u0026lt;80\u003c\/span\u003e\u003c\/p\u003e      \u003cdiv\u003e        \u003c\/div\u003e     \u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e      NOT FOR PESTICIDAL OR MEDICINAL USE\u003c\/td\u003e    \u003c\/tr\u003e   \u003c\/tbody\u003e  \u003c\/table\u003e  \u003cp align=\"LEFT\"\u003e    \u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225612456020,"sku":"Iron-Sulfate-1lb.","price":4.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/FERROUS_20SULFATE_20HEPTAHYDRATElarge_20optimized_68fba1cb-65ae-4692-ad0c-5c2c038646f9.jpg?v=1752679017"},{"product_id":"iron-sulfate-heptahydrate-powder-50-lb","title":"Iron Sulfate Heptahydrate powder 50 lb.","description":"\u003ch1 style=\"font-variant-numeric: normal; font-variant-east-asian: normal; line-height: 1.5em; margin: 0px 0px 5px; padding: 0px; border: 0px; vertical-align: baseline; clear: both; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003eIron Sulfate heptahydrate 50-pound bag \u003c\/h1\u003e\n\u003ch2\u003e20% Iron  Sulfur water soluble fertilizer for fertigation and hydroponic nutrient solutions.\u003c\/h2\u003e\n\u003ch3 style=\"color: rgb(51, 51, 51); font-family: Verdana, sans-serif;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eCrown’s iron sulfate is considered to be the highest quality available in the country. Crown is one of the largest domestic suppliers of ferrous products. \u003c\/span\u003e\u003c\/h3\u003e\n\u003cp style=\"color: rgb(51, 51, 51); margin: 0px 0px 15px; padding: 0px; border: 0px; vertical-align: baseline; font-family: Tahoma, Verdana, sans-serif; font-size: 13px; line-height: 19.5px; text-align: center; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e\u003cspan style=\"font-size: 14px;\"\u003e\u003cspan style=\"text-align: center; line-height: 1.5em;\"\u003eFerrous Sulfate Heptahydrate - Untreated-\u003c\/span\u003e\u003cspan style=\"text-align: center; line-height: 1.5em;\"\u003ePRODUCT MAY CAKE OVER TIME\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"CROWN ferrous sulfate label\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/CROWN_IRON_Ferrous_Sulfate_Label_Insp_10-12-21-7732326236244.pdf?v=1755603593\" target=\"_blank\"\u003eLABEL\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003ca title=\"Crown Ferrous Sulfate SDS\" href=\"https:\/\/customhydronutrients.com\/assets\/images\/downloads\/Iron-Sulfate-heptahydrate-CROWN-SDS.pdf\" target=\"_blank\"\u003eIron \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Crown Ferrous Sulfate SDS\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Iron-Sulfate-heptahydrate-CROWN-SDS-7732326236244.pdf?v=1755603672\" target=\"_blank\"\u003eSulfate\u003c\/a\u003e\u003ca title=\"Crown Ferrous Sulfate SDS\" href=\"https:\/\/customhydronutrients.com\/assets\/images\/downloads\/Iron-Sulfate-heptahydrate-CROWN-SDS.pdf\" target=\"_blank\"\u003e Safety Data Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" title=\"Storage and Handling of Iron Sulfate\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Storage-and-Handling-Information-for-Ferrous-Sulfate-Heptahydrate-7732326236244.pdf?v=1755603743\" target=\"_blank\"\u003eStorage and Handling Information for Ferrous \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Storage and Handling of Iron Sulfate\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Storage-and-Handling-Information-for-Ferrous-Sulfate-Heptahydrate-7732326236244.pdf?v=1755603743\" target=\"_blank\"\u003eSulfate\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Storage and Handling of Iron Sulfate\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Storage-and-Handling-Information-for-Ferrous-Sulfate-Heptahydrate-7732326236244.pdf?v=1755603743\" target=\"_blank\"\u003e Heptahydrate\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e40 x 50 pound bags per pallet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Crown Technology Inc.","offers":[{"title":"Default Title","offer_id":42225612488788,"sku":"Crown-Ferrous-Sulfate-50lb.","price":39.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/crown_20iron_20sulfate_2050_20pound_20baglarge_20optimized.jpg?v=1752679018"},{"product_id":"iron-sulfate-heptahydrate-4-lb-jar","title":"Iron Sulfate Heptahydrate 4 lb. jar","description":"\u003ch1\u003eIron Sulfate fertilizer four pound container\u003c\/h1\u003e\u003ch2\u003eFine powder fully soluble in water for use in fertigation and hydroponic nutrient solutions.\u003c\/h2\u003e\u003ch3 style=\"border: 0px; margin: 0px 0px 5px; padding: 0px; vertical-align: baseline; clear: both; line-height: 1.5em; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e20% Iron and 12% Sulfur\u003c\/h3\u003e  \u003ch1 style=\"font-family: Georgia, Times, serif; font-size: 24px; line-height: 1.5em; font-weight: normal; color: rgb(7, 77, 48); margin: 0px 0px 5px; padding: 0px; border: 0px; vertical-align: baseline; clear: both; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e   \u003cspan style=\"color: rgb(51, 51, 51); font-family: Tahoma, Verdana, sans-serif; font-size: 13px; line-height: 19.5px;\"\u003e \u003c\/span\u003e\n\u003c\/h1\u003e  \u003cp style=\"color: rgb(51, 51, 51); margin: 0px 0px 15px; padding: 0px; border: 0px; vertical-align: baseline; font-family: Tahoma, Verdana, sans-serif; font-size: 13px; line-height: 19.5px; text-align: center; background-image: initial; background-attachment: initial; background-size: initial; background-origin: initial; background-clip: initial; background-position: initial; background-repeat: initial;\"\u003e   \u003cspan style=\"font-size: 11px; text-align: center; line-height: 1.5em; font-family: 'comic sans ms', cursive;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003eFerrous Sulfate Heptahydrate - Untreated-\u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-size: 11px; text-align: center; line-height: 1.5em; font-family: 'comic sans ms', cursive;\"\u003ePRODUCT MAY CAKE OVER TIME\u003c\/span\u003e\u003c\/p\u003e  \u003ctable align=\"center\" border=\"1\" cellpadding=\"1\" cellspacing=\"1\" style=\"width: 90%\" summary=\"Solu-Grade Iron Sulfate Typical Analysis\"\u003e   \u003ccaption\u003e    Solution Grade Iron Sulfate Typical Analysis\u003c\/caption\u003e   \u003ctbody\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      Assay 99.6% Min.\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      Ferrous Iron 20.0% Min.\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      Insoluble Substances 0.1% Max.\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      Sulfur 12.0% Min\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd style=\"text-align: center;\"\u003e      pH 5% solution: 2.5-5.0\u003c\/td\u003e     \u003ctd style=\"text-align: center;\"\u003e      \u003cp\u003e       Particle Size Range -7 +60 mesh\u003c\/p\u003e      \u003cp\u003e       90% thru 10 mesh pass-100% thru 4 mesh pass\u003c\/p\u003e     \u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e      Bulk Density 55 lb\/cu ft.\u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\"\u003e      \u003cp style=\"text-align: center;\"\u003e       \u003cspan style=\"font-family: 'comic sans ms', cursive;\"\u003etypical heavy metals data in ppm: arsenic \u0026lt;0.2, lead \u0026lt;2, cadmium \u0026lt;3, mercury \u0026lt;0.05, chromium \u0026lt;40, nickel \u0026lt;150, copper \u0026lt;30, zinc \u0026lt;80\u003c\/span\u003e\u003c\/p\u003e      \u003cdiv\u003e        \u003c\/div\u003e     \u003c\/td\u003e    \u003c\/tr\u003e    \u003ctr\u003e     \u003ctd colspan=\"2\" style=\"text-align: center;\"\u003e      NOT FOR PESTICIDAL OR MEDICINAL USE\u003c\/td\u003e    \u003c\/tr\u003e   \u003c\/tbody\u003e  \u003c\/table\u003e  \u003cp align=\"LEFT\"\u003e    \u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225612521556,"sku":"Iron-Sulfate-4lb.","price":7.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/FERROUS_20SULFATE_20HEPTAHYDRATElarge_20optimized_c92df9e2-09e3-4fd5-b2fa-80de1e45a2d9.jpg?v=1752679018"},{"product_id":"manganese-sulfate-fertilizer-1-lb","title":"Manganese Sulfate fertilizer 1 lb.","description":"\u003ch1\u003eManganese Sulfate fine powder, 1 pound jar\u003c\/h1\u003e\n\u003ch2\u003eQuick-Acting Source of Manganese\u003c\/h2\u003e\n\u003ch2\u003eSuitable for Hydroponic and Fertigation systems.\u003c\/h2\u003e\n\u003cdiv\u003eGuaranteed Analysis:\u003c\/div\u003e\n\u003cdiv\u003eNitrogen---0% \u003c\/div\u003e\n\u003cdiv\u003ePhosphate---0%\u003c\/div\u003e\n\u003cdiv\u003ePotash---0%\u003c\/div\u003e\n\u003cdiv\u003eTotal Manganese as Mn .......................................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eWater Soluble Manganese as Mn ........................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eDerived from: Manganese Sulfate\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eFor Hydroponics and constant feed systems make a liter of stock concentrate with 0.9-1 gram manganese sulfate, then use this concentrate at the rate of 2.5 mL \/litere (9-10 mL\/gallon) for 1.5 ppm Mn in working solution.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv\u003eManganese: 0.1-2.0ppm\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor soils deficient in Manganese (Mn), apply this fast-acting source of 31% Mn to the soil at 20-60 lb\/acre, preplant or at planting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFor banding or side-dressing, use 10-30 lbs\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAs a foliar use at 1-3 lb\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlso contains 18% sulfur\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMnSO4.H2O Manganese Sulfate monohydrate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFine Powder grade\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely Soluble in Water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Tecmangam manganese sulfate specification sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/tecmangam-manganese-sulfate-data-sheet-7732326432852.pdf?v=1755603984\" target=\"_blank\"\u003etech data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Tecmangam manganese sulfate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Manganese_Sulfate_-_MSDS-7732326432852.pdf?v=1755604058\" target=\"_blank\"\u003esafety data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225613111380,"sku":"Tecmangam-powder-1lb.","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/one_pound_short_jar_image_manganese_sulfate.jpg?v=1752679019"},{"product_id":"manganese-sulfate-fertilizer-4-lb","title":"Manganese Sulfate fertilizer 4 lb.","description":"\u003ch1\u003eManganese Sulfate fine powder, 4 pound jar\u003c\/h1\u003e\n\u003ch2\u003eQuick-Acting Source of Manganese\u003c\/h2\u003e\n\u003ch2\u003eSuitable for Hydroponic and Fertigation solutions.\u003c\/h2\u003e\n\u003cdiv\u003eGuaranteed Analysis:\u003c\/div\u003e\n\u003cdiv\u003eNitrogen---0% \u003c\/div\u003e\n\u003cdiv\u003ePhosphate---0%\u003c\/div\u003e\n\u003cdiv\u003ePotash---0%\u003c\/div\u003e\n\u003cdiv\u003eTotal Manganese as Mn .......................................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eWater Soluble Manganese as Mn ........................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eDerived from: Manganese Sulfate\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eFor Hydroponics and constant feed systems make a liter of stock concentrate with 0.9-1 gram manganese sulfate, then use this concentrate at the rate of 2.5 mL \/litere (9-10 mL\/gallon) for 1.5 ppm Mn in working solution.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv\u003eManganese: 0.1-2.0ppm\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor soils deficient in Manganese (Mn), apply this fast-acting source of 31% Mn to the soil at 20-60 lb\/acre, preplant or at planting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFor banding or side-dressing, use 10-30 lbs\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAs a foliar use at 1-3 lb\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlso contains 18% sulfur\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMnSO4.H2O Manganese Sulfate monohydrate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFine Powder grade\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely Soluble in Water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Tecmangam manganese sulfate specification sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/tecmangam-manganese-sulfate-data-sheet-7732326465620.pdf?v=1755604185\" target=\"_blank\"\u003etech data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"Tecmangam manganese sulfate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Manganese_Sulfate_-_MSDS-7732326465620.pdf?v=1755604270\" target=\"_blank\"\u003esafety data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225613144148,"sku":"Tecmangam-powder-4lb","price":11.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/four_pound_short_jar_image_Manganese_sulfate.jpg?v=1752679020"},{"product_id":"manganese-sulfate-fertilizer-8-oz","title":"Manganese Sulfate fertilizer 8 oz.","description":"\u003ch1\u003eManganese Sulfate fine powder, 8 oz.\u003c\/h1\u003e\n\u003ch2\u003eQuick-Acting Source of Manganese\u003c\/h2\u003e\n\u003ch2\u003eSuitable for Hydroponic and Fertigation solutions.\u003c\/h2\u003e\n\u003cdiv\u003eGuaranteed Analysis:\u003c\/div\u003e\n\u003cdiv\u003eNitrogen---0% \u003c\/div\u003e\n\u003cdiv\u003ePhosphate---0%\u003c\/div\u003e\n\u003cdiv\u003ePotash---0%\u003c\/div\u003e\n\u003cdiv\u003eTotal Manganese as Mn .......................................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eWater Soluble Manganese as Mn ........................... 29.0%\u003c\/div\u003e\n\u003cdiv\u003eDerived from: Manganese Sulfate\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eFor Hydroponics and constant feed systems make a liter of stock concentrate with 0.9-1 gram manganese sulfate, then use this concentrate at the rate of 2.5 mL \/litere (9-10 mL\/gallon) for 1.5 ppm Mn in working solution.\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv\u003eManganese: 0.1-2.0ppm\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor soils deficient in Manganese (Mn), apply this fast-acting source of 31% Mn to the soil at 20-60 lb\/acre, preplant or at planting.\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eFor banding or side-dressing, use 10-30 lbs\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAs a foliar use at 1-3 lb\/acre\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAlso contains 18% sulfur\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMnSO4.H2O Manganese Sulfate monohydrate\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFine Powder grade\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eCompletely Soluble in Water\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/tecmangam-manganese-sulfate-data-sheet-7732326498388.pdf?v=1755604549\" title=\"Tecmangam manganese sulfate specification sheet\" target=\"_blank\" rel=\"noopener\"\u003etech data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Manganese_Sulfate_-_MSDS-7732326498388.pdf?v=1755604611\" title=\"Tecmangam manganese sulfate safety data sheet\" target=\"_blank\" rel=\"noopener\"\u003esafety data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Prince Agri\/Tecmangam","offers":[{"title":"Default Title","offer_id":42225613176916,"sku":"Tecmangam-powder-8oz.","price":3.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/8_oZ_short_jar_image_manganese_sulfate.jpg?v=1752679021"},{"product_id":"manganese-sulfate-soluble-fertilizer-powder-55-lb","title":"Tecmangam Manganese Sulfate Soluble Powder | 32% Mn 55 lb","description":"\u003ch2\u003eHigh-Volume Soluble Manganese for Hydroponic, Fertigation \u0026amp; Soil Programs\u003c\/h2\u003e\u003cp\u003eTecmangam Manganese Sulfate Soluble Powder is Prince Agri's commercial-scale water-soluble manganese source — delivering \u003cstrong\u003e32% manganese (Mn)\u003c\/strong\u003e and \u003cstrong\u003e18% sulfur (S)\u003c\/strong\u003e in a fine powder that dissolves completely for use in hydroponic nutrient solutions, fertigation systems, and foliar programs. The 55 lb bag is sized for high-volume operations that need a reliable, cost-effective manganese input at scale.\u003c\/p\u003e\u003cp\u003eManganese is essential for photosynthesis, enzyme activation, and nitrogen metabolism. Deficiency causes interveinal chlorosis in young leaves and reduced plant vigor — particularly in high-pH or leached soils. Tecmangam corrects it fast, with immediately plant-available Mn in every application.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTotal Manganese (Mn):\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWater Soluble Manganese (Mn):\u003c\/strong\u003e 32%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 18%\u003c\/li\u003e\n\u003cli\u003eDerived from: Manganese Sulfate Monohydrate (MnSO₄·H₂O)\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic stock solution:\u003c\/strong\u003e Dissolve 0.9–1.0 g per liter of water; apply at 2.5 mL\/liter (9–10 mL\/gallon) to achieve ~1.5 ppm Mn in working solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstant-feed systems:\u003c\/strong\u003e Target range 0.1–2.0 ppm Mn in nutrient solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e 1–3 lb\/acre dissolved in water\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil broadcast:\u003c\/strong\u003e 20–60 lb\/acre pre-plant or at planting for manganese-deficient soils\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBanding \/ side-dress:\u003c\/strong\u003e 10–30 lb\/acre for in-season correction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e32% manganese\u003c\/strong\u003e — high-analysis, fast-acting soluble Mn source\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% water soluble\u003c\/strong\u003e — fully dissolves for hydroponic, fertigation, and foliar use; no clogging of injectors or emitters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual nutrient\u003c\/strong\u003e — delivers manganese and sulfur simultaneously\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e55 lb commercial bag\u003c\/strong\u003e — high-volume size for greenhouse, nursery, and wholesale operations\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Prince Agri\/Tecmangam","offers":[{"title":"Default Title","offer_id":42225613209684,"sku":"MN-SUL-PWD-TECMN-55LB","price":111.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/manganese_20sulfate_20soluble_20fertilizer_20powder_2055_20lb.jpg?v=1752679022"},{"product_id":"copper-sulfate-fertilizer-1-lb","title":"Copper Sulfate Fine Crystals | 25% Cu 1 lb","description":"\u003ch2\u003eFine Crystal Copper Sulfate for Hydroponic, Fertigation \u0026amp; Foliar Use\u003c\/h2\u003e\u003cp\u003eChemOne Copper Sulfate Fine Crystals deliver \u003cstrong\u003e25% copper (Cu)\u003c\/strong\u003e in a 99% pure, feed-grade copper sulfate pentahydrate — sold in a resealable wide-mouth plastic container. The 1 lb size is ideal for home growers, small hydroponic systems, and trial use. NSF\/ANSI Standard 60 certified and ANSI\/AWWA compliant.\u003c\/p\u003e\u003cp\u003eCopper is essential for enzyme activation, photosynthesis, and lignin synthesis. At trace levels it's critical — but easy to over-apply. This fine crystal format dissolves quickly and precisely, making it easy to dial in the 0.01–0.1 ppm Cu target range in nutrient solutions.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper (Cu):\u003c\/strong\u003e 25.0% (as metallic, not less than 25%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDerived from:\u003c\/strong\u003e Copper Sulfate Pentahydrate (CuSO₄·5H₂O) — 99.0% min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS #:\u003c\/strong\u003e 7758-99-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther ingredients:\u003c\/strong\u003e Anti-caking agent (MgCaCO₃) 1.0%\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic stock solution:\u003c\/strong\u003e Dissolve 0.15 g per liter of water; apply at 1–10 mL\/gallon to achieve 0.01–0.1 ppm Cu in working solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar \u0026amp; fertigation:\u003c\/strong\u003e Apply per label recommendations; use in accordance with guidance from a qualified individual or institution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25% copper\u003c\/strong\u003e — high-purity fine crystals; 99.56% typical purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNSF\/ANSI 60 certified\u003c\/strong\u003e — meets ANSI\/AWWA standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed grade\u003c\/strong\u003e — suitable for animal feed trace mineral supplementation per good manufacturing practices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast dissolving\u003c\/strong\u003e — fine crystal particle size (80% min passes mesh 60)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResealable wide-mouth container\u003c\/strong\u003e — easy to measure and store\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 lb size\u003c\/strong\u003e — ideal for home growers, small systems, and product trials\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eState restrictions:\u003c\/strong\u003e Not available for shipment to Oregon. See label for WI, CA, and WA recommendations.\u003c\/p\u003e\u003cp\u003eUse in accordance with recommendations of a qualified individual or institution. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper-sulfate-chemone-fertilizer-bag-label-7732326694996.pdf?v=1755605284\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eProduct Label (PDF)\u003c\/strong\u003e\u003c\/a\u003e | \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Copper_sulfate_chemone_SDS-7732326694996.pdf?v=1755605356\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eSafety Data Sheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225613570132,"sku":"CU-SUL-FINE-CHEMONE-1LB","price":10.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/image_30254d03-128b-4d5f-929b-c5bf7a892942.png?v=1774560324"},{"product_id":"copper-sulfate-8-oz","title":"Copper Sulfate 8 oz.","description":"\u003ch1\u003eCOPPER SULFATE CRYSTALS\u003c\/h1\u003e\n\u003ch2\u003e25% copper\u003c\/h2\u003e\n\u003ch2\u003eWater soluble fertilizer for Hydroponic and Fertigation solutions.\u003c\/h2\u003e\n\u003cp\u003eFor constant feeding and hydroponic systems, the range in common nutrients solutions is 0.01-0.1 ppm copper.\u003c\/p\u003e\n\u003cp\u003eTo make a concentrated liquid stock solution. Add 0.15 grams to one liter final volume water. Then use this stock solution at 1 mL-10mL per gallon of working strength solution. This use rate(1-10mL\/gallon) gives 0.01 to 0.1 ppm copper in the working solution.\u003c\/p\u003e\n\u003cp\u003eWhen this product is used as a feed or fertilizer ingredient:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGuaranteed Analysis:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCopper (Cu) = 25.0% Derived from Copper Sulfate\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efines\u003c\/li\u003e\n\u003cli\u003efeed grade\u003c\/li\u003e\n\u003cli\u003ere-closable plastic wide mouth container\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"ChemONE copper sulfate fertilizer label\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper-sulfate-chemone-fertilizer-bag-label-7732326727764.pdf?v=1755605490\" target=\"_blank\"\u003elabel\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" title=\"ChemONE copper sulfate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Copper_sulfate_chemone_SDS-7732326727764.pdf?v=1755605572\" target=\"_blank\"\u003esafety data sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eACTIVE INGREDIENT BY WEIGHT COPPER SULFATE PENTAHYDRATE………………………………… 99.0%\u003c\/p\u003e\n\u003cp\u003eOTHER INGREDIENTS(anti-caking agent MgCaCO3)……………………………………………………………. 1.0%\u003c\/p\u003e\n\u003cp\u003eTOTAL ……………………………………………………………………… 100.0%\u003c\/p\u003e\n\u003cp\u003eCAS #7758-99-8\u003c\/p\u003e\n\u003cp\u003eCOPPER AS METALLIC NOT LESS THAN 25%\u003c\/p\u003e\n\u003cp\u003eFor non-pesticidal uses of copper sulfate including but not limited to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFor Non-Pesticidal Manufacturing and Industrial Uses.\u003c\/li\u003e\n\u003cli\u003eFor manufacturing, repackaging, formulation of algaecides and fungicides.\u003c\/li\u003e\n\u003cli\u003eFor use as foot baths to control hoof rot in cattle.\u003c\/li\u003e\n\u003cli\u003eFor use in preparing Bordeaux mixture.\u003c\/li\u003e\n\u003cli\u003eFor use as a trace mineral for mixing in animal feeds at levels in accord with good feeding and feed manufacturing practices.\u003c\/li\u003e\n\u003cli\u003eFor use as a fertilizer trace mineral for plant growth and used in accord with recommended agronomic practices.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e(NOTE: For the states of Wisconsin, California, Oregon and Washington fertilizer recommendations and information, refer to back panel.)\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eKEEP OUT OF REACH OF CHILDREN\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003eDANGER - PELIGRO\u003c\/p\u003e\n\u003ch3\u003eBORDEAUX SPRAY MIXTURE\u003c\/h3\u003e\n\u003ch4\u003eUnderstanding Bordeaux Formulations:\u003c\/h4\u003e\n\u003cp\u003eIf the Bordeaux mixture instructions read 10-10-100, the first figure indicates the number of lbs of Copper Sulfate Crystals. The second figure is the lbs of hydrated spray lime and the third figure is the gallons of water to be used. Use as a full coverage spray to point of runoff.\u003c\/p\u003e\n\u003ch4\u003ePreparation of Bordeaux Spray Mixture:\u003c\/h4\u003e\n\u003cp\u003eFill a tank 1\/4 full with water. Then, with agitator running, mix in Copper Sulfate Crystals through a copper, bronze, stainless steel or plastic screen. Add water so the tank is 3\/4 full. Mix in the hydrated spray lime through the screen and finish filling the tank with water.\u003c\/p\u003e\n\u003ctable summary=\"Copper Sulfate Typical Analysis\" style=\"width: 90%;\" cellspacing=\"1\" cellpadding=\"1\" border=\"1\" align=\"center\"\u003e\n\u003ccaption\u003eCopper Sulfate Typical Analysis\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003ePurity 99.0% Min (99.56% Typical)\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eAssay (Cu) 25.2% Min (25.34% Typical)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003epH (5% soln) 3.0-5.0 \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eFe 1000 ppm (0.1%) Max (720 ppmTypical)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: center;\"\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eZn 500 ppm (0.05%) Max (270 ppm Typical)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eNi 50 ppm (0.005%) Max (\u0026lt;10ppm typical)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eNa 1000 ppm Max (\u0026lt;200 ppm typical)\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eParticle Size , passes mesh 60 = 80% Min\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\" colspan=\"2\"\u003e\u003cspan style=\"font-size: 12px;\"\u003e\u003cspan\u003eThis product is certified to NSF\/ANSI Standard 60 and meets ANSI\/AWWA standards ***not for medicinal use****\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225613602900,"sku":"CuSO4-fine-LTD-QTY-8oz.","price":8.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper_20sulfate_finelarge_20optimized_595f1145-2e03-4223-b8eb-7be6e9463307.jpg?v=1752679023"},{"product_id":"copper-sulfate-fertilizer-4-lb","title":"Copper Sulfate Fine Crystals | 25% Cu 4 lb","description":"\u003ch2\u003eFine Crystal Copper Sulfate for Hydroponic, Fertigation \u0026amp; Foliar Use\u003c\/h2\u003e\u003cp\u003eChemOne Copper Sulfate Fine Crystals deliver \u003cstrong\u003e25% copper (Cu)\u003c\/strong\u003e in a 99% pure, feed-grade copper sulfate pentahydrate — sold in a resealable wide-mouth plastic container. The 4 lb size is ideal for small commercial operations, greenhouse growers, and multi-system nutrient programs. NSF\/ANSI Standard 60 certified and ANSI\/AWWA compliant.\u003c\/p\u003e\u003cp\u003eCopper is essential for enzyme activation, photosynthesis, and lignin synthesis. This fine crystal format dissolves quickly and precisely, making it easy to dial in the 0.01–0.1 ppm Cu target range in nutrient solutions.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper (Cu):\u003c\/strong\u003e 25.0% (as metallic, not less than 25%)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDerived from:\u003c\/strong\u003e Copper Sulfate Pentahydrate (CuSO₄·5H₂O) — 99.0% min\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCAS #:\u003c\/strong\u003e 7758-99-8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOther ingredients:\u003c\/strong\u003e Anti-caking agent (MgCaCO₃) 1.0%\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic stock solution:\u003c\/strong\u003e Dissolve 0.15 g per liter of water; apply at 1–10 mL\/gallon to achieve 0.01–0.1 ppm Cu in working solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar \u0026amp; fertigation:\u003c\/strong\u003e Apply per label recommendations; use in accordance with guidance from a qualified individual or institution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25% copper\u003c\/strong\u003e — high-purity fine crystals; 99.56% typical purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNSF\/ANSI 60 certified\u003c\/strong\u003e — meets ANSI\/AWWA standards\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFeed grade\u003c\/strong\u003e — suitable for animal feed trace mineral supplementation per good manufacturing practices\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast dissolving\u003c\/strong\u003e — fine crystal particle size (80% min passes mesh 60)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResealable wide-mouth container\u003c\/strong\u003e — easy to measure and store\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4 lb size\u003c\/strong\u003e — ideal for small commercial growers and multi-system operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eState restrictions:\u003c\/strong\u003e Not available for shipment to Oregon. See label for WI, CA, and WA recommendations.\u003c\/p\u003e\u003cp\u003eUse in accordance with recommendations of a qualified individual or institution. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper-sulfate-chemone-fertilizer-bag-label-7732326760532.pdf?v=1755605715\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eProduct Label (PDF)\u003c\/strong\u003e\u003c\/a\u003e | \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Copper_sulfate_chemone_SDS-7732326760532.pdf?v=1755605786\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eSafety Data Sheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225613635668,"sku":"CU-SUL-FINE-CHEMONE-4LB","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper_20sulfate_finelarge_20optimized_f0566c4a-797a-48e4-8609-99af54d23510.jpg?v=1752679024"},{"product_id":"copper-sulfate-fertilizer-50-lb-chem-one-fines","title":"Chem One Copper Sulfate Fine Crystals | 25% Cu 50 lb","description":"\u003ch2\u003eOMRI-Listed Copper Sulfate Pentahydrate for Fertigation, Hydroponic \u0026amp; Organic Use\u003c\/h2\u003e\u003cp\u003eChem One Copper Sulfate Fine Crystals is a 99%+ pure copper sulfate pentahydrate in a fine particle size (80% passing mesh 60) — engineered for fast, complete dissolution in fertigation systems, hydroponic nutrient solutions, and Bordeaux mixture preparation. Delivering \u003cstrong\u003e25% copper (Cu) minimum\u003c\/strong\u003e derived from copper sulfate, it is OMRI listed and certified for use in organic agriculture under USDA NOP rules.\u003c\/p\u003e\u003cp\u003eCopper is essential for enzyme activation, photosynthesis, and lignin synthesis. At trace levels, it keeps plant metabolism running efficiently. Chem One's fine crystal format ensures rapid dissolution and precise dosing — critical when working at the 0.01–0.1 ppm range required in hydroponic systems.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper (Cu):\u003c\/strong\u003e 25.0% minimum — derived from Copper Sulfate Pentahydrate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActive ingredient:\u003c\/strong\u003e Copper Sulfate Pentahydrate 99.0% (CAS #7758-99-8)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-caking agent:\u003c\/strong\u003e MgCaCO3 1.0%\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Chemical Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePurity:\u003c\/strong\u003e 99.0% min (99.56% typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper (Cu):\u003c\/strong\u003e 25.2% min (25.34% typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH (5% solution):\u003c\/strong\u003e 3.0–5.0\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron (Fe):\u003c\/strong\u003e 1,000 ppm max (720 ppm typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc (Zn):\u003c\/strong\u003e 500 ppm max (270 ppm typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNickel (Ni):\u003c\/strong\u003e 50 ppm max (\u0026lt;10 ppm typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSodium (Na):\u003c\/strong\u003e 1,000 ppm max (\u0026lt;200 ppm typical)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticle size:\u003c\/strong\u003e 80% minimum passing mesh 60\u003c\/li\u003e\n\u003cli\u003eCertified to NSF\/ANSI Standard 60 and meets ANSI\/AWWA standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eHydroponic \u0026amp; Fertigation Application Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget range:\u003c\/strong\u003e 0.01–0.1 ppm copper in working nutrient solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock solution:\u003c\/strong\u003e Dissolve 0.15 g in 1 liter of water; apply at 1–10 mL\/gallon of working solution to achieve 0.01–0.1 ppm Cu\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAdditional Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBordeaux mixture preparation for fungal and disease management\u003c\/li\u003e\n\u003cli\u003eAnimal feed trace mineral additive (at levels per good feed manufacturing practices)\u003c\/li\u003e\n\u003cli\u003eAlgaecide and fungicide manufacturing and formulation\u003c\/li\u003e\n\u003cli\u003eHoof rot foot bath treatment for cattle\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eState restrictions:\u003c\/strong\u003e For Wisconsin, California, Oregon, and Washington — refer to back panel for fertilizer recommendations.\u003c\/p\u003e\u003cp\u003e⚠️ \u003cstrong\u003eShips as a HAZARDOUS MATERIAL:\u003c\/strong\u003e Environmentally hazardous substances, solid, n.o.s. (cupric sulfate) — UN3077, Class 9, PG III. Hazmat shipping surcharges apply.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/copper-sulfate-chemone-fertilizer-bag-label-7732326793300.pdf?v=1755606152\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eProduct Label (PDF)\u003c\/strong\u003e\u003c\/a\u003e  |  \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Copper_sulfate_chemone_SDS-7732326793300.pdf?v=1755606244\" target=\"_blank\" rel=\"noopener\"\u003e\u003cstrong\u003eSafety Data Sheet (PDF)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"Chem One","offers":[{"title":"Default Title","offer_id":42225613668436,"sku":"CO-CU-SULF-FINE-50LB","price":176.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/chem_one_copper_sulfate.jpg?v=1752679025"},{"product_id":"copper-sulfate-fertilizer-20-lb","title":"Copper Sulfate Fine Crystals | 25% Cu 20 lb Pail","description":"\u003ch2\u003eSoluble Copper Sulfate for Fertigation, Hydroponic \u0026amp; Organic Use\u003c\/h2\u003e\u003cp\u003eThis copper sulfate fine crystal formula delivers \u003cstrong\u003e25% copper (Cu) minimum\u003c\/strong\u003e derived from copper sulfate pentahydrate — packaged in a convenient 2-gallon white plastic pail for easy handling, storage, and dispensing. OMRI listed and certified for use in organic agriculture under USDA NOP rules, it dissolves rapidly for precise dosing in fertigation systems and hydroponic nutrient solutions.\u003c\/p\u003e\u003cp\u003eCopper is an essential micronutrient driving enzyme activation, photosynthesis, and lignin synthesis. The fine crystal particle size ensures fast, complete dissolution — critical when working at the low concentrations required in recirculating hydroponic systems.\u003c\/p\u003e\u003ch3\u003eGuaranteed Analysis\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eCopper (Cu):\u003c\/strong\u003e 25.0% minimum — derived from Copper Sulfate Pentahydrate\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eHydroponic \u0026amp; Fertigation Application Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTarget range:\u003c\/strong\u003e 0.01–0.1 ppm copper in working nutrient solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStock solution:\u003c\/strong\u003e Dissolve 0.15 g in 1 liter of water; apply at 1–10 mL\/gallon of working solution to achieve 0.01–0.1 ppm Cu\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e25% copper minimum\u003c\/strong\u003e — high-analysis, efficient copper delivery per pound applied\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine crystal format\u003c\/strong\u003e — rapid dissolution with minimal agitation; no clogging of injectors or emitters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI listed\u003c\/strong\u003e — certified for use in certified organic production under USDA NOP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-gallon white plastic pail\u003c\/strong\u003e — resealable, stackable, and easy to store; protects contents from moisture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile\u003c\/strong\u003e — suitable for fertigation, hydroponic, foliar, and Bordeaux mixture applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eState restrictions:\u003c\/strong\u003e Not available for shipment to Oregon.\u003c\/p\u003e\u003cp\u003e⚠️ \u003cstrong\u003eShips as a HAZARDOUS MATERIAL:\u003c\/strong\u003e Environmentally hazardous substances, solid, n.o.s. (cupric sulfate) — UN3077, Class 9, PG III. Hazmat shipping surcharges apply.\u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614192724,"sku":"CU-SUL-FINE-LTD-QTY-2X10LB-2GAL","price":88.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/image_9c1c2626-6f10-4274-add9-e3089f7ba47b.png?v=1774387774"},{"product_id":"sodium-molybdate-8-oz","title":"Sodium Molybdate 8 oz.","description":"\u003ch1 style=\"text-align: left;\"\u003eSodium Molybdate, 8 dry ounces.\u003c\/h1\u003e\n\u003ch2 style=\"text-align: left;\"\u003e39.65% molybdenum\u003c\/h2\u003e\n\u003ch3 style=\"text-align: left;\"\u003eFor use as a component to supply Molybdenum to plants in a complete fertilizer mixture.\u003c\/h3\u003e\n\u003cdiv style=\"text-align: left;\"\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eMolybdenum: 0.05-0.2 ppm\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eDissolve 0.75 grams in one gallon of water to create a concentrated solution, then use 5 mL of this concentrate per gallon of working solution. This provides approximately 0.1 ppm molybdenum.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"color: rgb(68, 68, 68); line-height: 20px; font-family: verdana, arial, helvetica, sans-serif;\"\u003ePlease use in accordance with recommendations of a qualified individual or institution such as, but not limited to, a certified crop advisor, agronomist, university crop extension publication, or apply according to recommendations in your approved nutrient management plan.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e \u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003epacked in a reclosable plastic jar\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Sodium_Molybdate_Dihydrate_-_MSDS-7732326957140.pdf?v=1755606953\" target=\"_blank\"\u003eSodium Molybdate Dihydrate MSDS.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate Technical Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium-molybdate_Technical_Data_Sheet-7732326957140.pdf?v=1755607036\" target=\"_blank\"\u003eSodium Molybdate Dihydrate Tech Sheet.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(255, 165, 0);\"\u003eNOT FOR USE ON FORAGE CROPS FOR RUMINANT ANIMALS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614225492,"sku":"Sodium-Moly-8oz.","price":36.4,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium_20molybdate_20logolarge_20optimized.jpg?v=1752679026"},{"product_id":"sodium-molybdate-1-lb","title":"Sodium Molybdate 1 lb.","description":"\u003ch1\u003eSodium Molybdate, one pound\u003c\/h1\u003e\n\u003ch2\u003e39.65% molybdenum\u003c\/h2\u003e\n\u003ch3\u003eFor use as a component to supply Molybdenum to plants in a complete fertilizer mixture.\u003c\/h3\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eMolybdenum: 0.05-0.2 ppm\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eDissolve 0.75 grams in one gallon of water to create a concentrated solution, then use 5 mL of this concentrate per gallon of working solution. This provides approximately 0.1 ppm molybdenum.\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: start;\"\u003e\u003cspan style=\"color: rgb(68, 68, 68); line-height: 20px; font-family: verdana, arial, helvetica, sans-serif;\"\u003ePlease use in accordance with recommendations of a qualified individual or institution such as, but not limited to, a certified crop advisor, agronomist, university crop extension publication, or apply according to recommendations in your approved nutrient management plan.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cul style=\"font-size: medium; font-weight: 400; text-align: start;\"\u003e\n\u003cli\u003epacked in a reclosable plastic jar\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Sodium_Molybdate_Dihydrate_-_MSDS-7732326989908.pdf?v=1755607190\" target=\"_blank\"\u003eSodium Molybdate Dihydrate MSDS.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate Technical Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium-molybdate_Technical_Data_Sheet-7732326989908.pdf?v=1755607259\" target=\"_blank\"\u003eSodium Molybdate Dihydrate Tech Sheet.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(255, 165, 0);\"\u003eNOT FOR USE ON FORAGE CROPS FOR RUMINANT ANIMALS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614258260,"sku":"Sodium-Moly-1lb.","price":53.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium_20molybdate_20logolarge_20optimized_7ccf1c51-87b0-418c-a872-ab6fbfafa389.jpg?v=1752679027"},{"product_id":"sodium-molybdate-fertilizer-4-lb","title":"Sodium Molybdate fertilizer 4 lb.","description":"\u003ch1\u003eSodium Molybdate, 4 pounds\u003c\/h1\u003e\n\u003ch2\u003e39.65% molybdenum\u003c\/h2\u003e\n\u003ch3\u003eFor use as a component to supply Molybdenum to plants in a complete fertilizer mixture.\u003c\/h3\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eElemental concentration range in common nutrient solutions.\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eMolybdenum: 0.05-0.2 ppm\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: left;\"\u003eDissolve 0.75 grams in one gallon of water to create a concentrated solution, then use 5 mL of this concentrate per gallon of working solution. This provides approximately 0.1 ppm molybdenum.\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400; text-align: start;\"\u003e\u003cspan style=\"color: rgb(68, 68, 68); line-height: 20px; font-family: verdana, arial, helvetica, sans-serif;\"\u003ePlease use in accordance with recommendations of a qualified individual or institution such as, but not limited to, a certified crop advisor, agronomist, university crop extension publication, or apply according to recommendations in your approved nutrient management plan.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"font-size: medium; font-weight: 400;\"\u003e \u003c\/div\u003e\n\u003cul style=\"font-size: medium; font-weight: 400; text-align: start;\"\u003e\n\u003cli\u003epacked in a reclosable plastic jar\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate safety data sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Sodium_Molybdate_Dihydrate_-_MSDS-7732327055444.pdf?v=1755608262\" target=\"_blank\"\u003eSodium Molybdate Dihydrate MSDS.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 0, 255);\"\u003e\u003ca rel=\"noopener\" title=\"Sodium Molybdate Technical Data Sheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium-molybdate_Technical_Data_Sheet-7732327055444.pdf?v=1755608338\" target=\"_blank\"\u003eSodium Molybdate Dihydrate Tech Sheet.pdf\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(255, 165, 0);\"\u003eNOT FOR USE ON FORAGE CROPS FOR RUMINANT ANIMALS\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614454868,"sku":"Sodium-Moly-4lb.","price":154.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/sodium_20molybdate_20logolarge_20optimized_6d891803-4e70-4917-a9ce-3fbc87fd6290.jpg?v=1752679029"},{"product_id":"hi-yield-zinc-sulfate-granular-fertilizer-4-lb","title":"HI-YIELD Zinc Sulfate granular fertilizer 4 lb.","description":"\u003ch1\u003e   Zinc Sulfate (4 lbs)\u003cbr type=\"_moz\"\u003e    Granular\u003c\/h1\u003e  \u003cp\u003e    A dry fertilizer formulation of zinc for application around fruit trees. Corrects deficiency that causes deformity of fruit, prevents and corrects Rosette on Pecans.\u003cbr\u003e   \u003cbr\u003e   \u003cbr\u003e   Application Rates: \u003cbr\u003e   \u003cbr\u003e    \u003c\/p\u003e  \u003cul\u003e   \u003cli\u003e    Foliage spray: 1 tablespoon per 3 gallons. \u003c\/li\u003e   \u003cli\u003e    Soil treatment: Trees: 1-3\/4 lbs. per inch of diameter. \u003c\/li\u003e   \u003cli\u003e    \u003ca href=\"https:\/\/\/download\/hi%20yield%20Zinc%20Sulfate%20label.pdf\" target=\"_blank\"\u003eLabel\u003c\/a\u003e\n\u003c\/li\u003e   \u003cli\u003e    \u003ca href=\"https:\/\/\/download\/Hi%20Yield%20Zinc%20Sulfate%20MSDS.pdf\" target=\"_blank\"\u003eMSDS\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"High Yield Products","offers":[{"title":"Default Title","offer_id":42225614618708,"sku":"HI-Yield-zinc-sulfate-4lb.","price":27.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/zinc_20sulfate-HI-YIELD_4poundslarge_20optimized.jpg?v=1752679029"},{"product_id":"zinc-sulfate-fertilizer-1-lb","title":"Zinc Sulfate fertilizer 1 lb.","description":"\u003ch1\u003eZinc Sulfate monohydrate fine powder, one pound\u003c\/h1\u003e\n\u003ch2\u003eSource of Fast-Acting Zinc and Sulfur\u003c\/h2\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eFor constant feeding and hydroponic systems, the range in common nutrients solutions is 0.1-2.0 ppm zinc.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eTo make a concentrated liquid stock solution. Add 0.6 grams to one liter final volume water. Then use this stock solution at 1 mL-10mL per gallon of working strength solution. This use rate(1-10mL\/gallon) gives 0.2 to 2 ppm zinc in the working solution.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003eZinc is an excellent fertilizer for various crops where the soil presents Zinc deficiency. The presence of Zinc is critical to the production of growth hormones and chlorophyll, for the respiration process and for the synthesis of carbohydrates.\u003cbr\u003e\u003cbr\u003eZinc is essential for the life of plants. Zinc sulfate is 100% water soluble and is used to correct zinc deficiencies in soil. It can be applied as fertilizer in granular form directly to the soil and in powder form for foliar and hydroponic applications.\u003c\/p\u003e\n\u003cp\u003eFast-acting source of 35.5% zinc and 17.5% sulfur. Zinc sulfate powder is applied as a foliar at 2-5 lb\/acre.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/zincnacional.com\/dl\/maximo-360-en.pdf\" target=\"_blank\"\u003eMaximo 360 data sheet\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca href=\"https:\/\/zincnacional.com\/dl\/msds-maximo-360-en.pdf\" target=\"_blank\"\u003eMaximo 360 MSDS\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: #006400;\"\u003e\u003cspan\u003e\u003ca href=\"https:\/\/zincnacional.com\/dl\/zns-1241-2020-09-01-cert.pdf\"\u003eOMRI Certificate\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca rel=\"noopener\" title=\"Maximo 360 zinc sulfate fertilizer label\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/maximo-360-zinc-sulfate-powder-50lb-bag-label-7732327186516.pdf?v=1755608567\" target=\"_blank\"\u003eLABEL\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSold in reclosable hard plastic container with screw top lid.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable summary=\"Typical chemical analysis:\" style=\"width: 90%;\" cellspacing=\"1\" cellpadding=\"1\" border=\"1\" align=\"center\"\u003e\n\u003ccaption\u003eTypical chemical analysis:\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eZinc (Zn)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e35.5% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eLead (Pb)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.01% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eIron (Fe)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e1.0% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCadmium (Cd)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.01% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eChlorine (Cl)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e1.0% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614913620,"sku":"MAXIMO-360-1lb.","price":5.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/maximo_20zinc_20sulfate_20powderlarge_20optimized.jpg?v=1752679029"},{"product_id":"zinc-sulfate-fertilizer-4-lb","title":"Zinc Sulfate fertilizer 4 lb.","description":"\u003ch1\u003eZinc Sulfate monohydrate fine powder, four pound\u003c\/h1\u003e\n\u003ch2\u003eSource of Fast-Acting Zinc and Sulfur\u003c\/h2\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eFor constant feeding and hydroponic systems, the range in common nutrients solutions is 0.1-2.0 ppm zinc.\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e \u003c\/div\u003e\n\u003cdiv\u003e\u003cspan style=\"font-size: 14px;\"\u003eTo make a concentrated liquid stock solution. Add 0.6 grams to one liter final volume water. Then use this stock solution at 1 mL-10mL per gallon of working strength solution. This use rate(1-10mL\/gallon) gives 0.2 to 2 ppm zinc in the working solution.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003eZinc is an excellent fertilizer for various crops where the soil presents Zinc deficiency. The presence of Zinc is critical to the production of growth hormones and chlorophyll, for the respiration process and for the synthesis of carbohydrates.\u003cbr\u003e\u003cbr\u003eZinc is essential for the life of plants. Zinc sulfate is 100% water soluble and is used to correct zinc deficiencies in soil. It can be applied as fertilizer in granular form directly to the soil and in powder form for foliar and hydroponic applications.\u003c\/p\u003e\n\u003cp\u003eFast-acting source of 35.5% zinc and 17.5% sulfur. Zinc sulfate powder is applied as a foliar at 2-5 lb\/acre.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.customhydronutrients.com\/download\/maximo-360%20spec%20sheet.pdf\" target=\"_blank\"\u003e\u003cspan\u003eMaximo 360 data sheet\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.customhydronutrients.com\/download\/maximo-360%20msds.pdf\" target=\"_blank\"\u003e\u003cspan\u003eMaximo 360 MSDS\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan style=\"color: rgb(0, 100, 0);\"\u003e\u003cspan\u003eOMRI Certificate\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e\u003ca rel=\"noopener\" title=\"Maximo 360 zinc sulfate fertilizer label\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/maximo-360-zinc-sulfate-powder-50lb-bag-label-7732327219284.pdf?v=1755608771\" target=\"_blank\"\u003eLABEL\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSold in reclosable hard plastic container with screw top lid.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable summary=\"Typical chemical analysis:\" style=\"width: 90%;\" cellspacing=\"1\" cellpadding=\"1\" border=\"1\" align=\"center\"\u003e\n\u003ccaption\u003eTypical chemical analysis:\u003c\/caption\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eZinc (Zn)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e35.5% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eLead (Pb)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.01% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eIron (Fe)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e1.0% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003eCadmium (Cd)\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e0.01% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003eChlorine (Cl)\u003c\/td\u003e\n\u003ctd style=\"text-align: center; background-color: rgb(51, 204, 255);\"\u003e1.0% Maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225614946388,"sku":"MAXIMO-360-4lb.","price":13.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/maximo_20zinc_20sulfate_20powderlarge_20optimized_89f8eacb-ea8d-4b6e-99a6-93fac15a56c9.jpg?v=1752679030"},{"product_id":"maximo-360-soluble-zinc-sulfate-fertilizer-50-lb","title":"Maximo 360 Zinc Sulfate Monohydrate | OMRI 50 lb","description":"\u003ch2\u003eZinc Nacional's Premium OMRI-Listed Zinc Sulfate for Commercial Growers\u003c\/h2\u003e\u003cp\u003eMaximo 360 is Zinc Nacional's flagship feed and fertilizer grade zinc sulfate monohydrate — a fine, free-flowing powder delivering \u003cstrong\u003e35.5% zinc\u003c\/strong\u003e and \u003cstrong\u003e17.5% sulfur\u003c\/strong\u003e with 100% water solubility. Trusted by commercial agriculture operations worldwide, Maximo 360 is OMRI listed and certified for use in organic production, making it the preferred zinc source for growers who need a clean, fast-acting micronutrient input across soil, foliar, and hydroponic programs.\u003c\/p\u003e\u003cp\u003eZinc drives growth hormone production, chlorophyll synthesis, carbohydrate metabolism, and cellular respiration. Deficiency shows up fast — stunted growth, interveinal chlorosis, and reduced yields. Maximo 360 corrects it faster.\u003c\/p\u003e\u003ch3\u003eNutrient Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc (Zn):\u003c\/strong\u003e 35.5% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 17.5%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead (Pb):\u003c\/strong\u003e 0.01% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron (Fe):\u003c\/strong\u003e 1.0% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCadmium (Cd):\u003c\/strong\u003e 0.01% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine (Cl):\u003c\/strong\u003e 1.0% maximum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e 2–5 lb\/acre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic stock solution:\u003c\/strong\u003e Dissolve 0.6 g per liter of water; apply at 1–10 mL\/gallon of working solution to achieve 0.2–2.0 ppm zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstant-feed systems:\u003c\/strong\u003e Maintain 0.1–2.0 ppm zinc in nutrient solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil application:\u003c\/strong\u003e Broadcast or incorporate to correct zinc-deficient soils; compatible with granular and dissolved delivery\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI listed\u003c\/strong\u003e — certified for use in certified organic agriculture\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% water soluble\u003c\/strong\u003e — fully dissolves for foliar, fertigation, and recirculating hydroponic systems\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast-acting\u003c\/strong\u003e — immediately plant-available zinc and sulfur upon application\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine powder\u003c\/strong\u003e — dissolves rapidly with minimal agitation; no clogging of injectors or emitters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommercial 50 lb bag\u003c\/strong\u003e — sized for growers, nurseries, and wholesale distribution\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Zinc Nacional","offers":[{"title":"Default Title","offer_id":42225615110228,"sku":"MAX360-ZN-SULF-50LB","price":72.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/t-maximo360polvo.png?v=1774300320"},{"product_id":"zinc-sulfate-fertilizer-20lb","title":"Zinc Sulfate Monohydrate | 35.5% Zn 20 lb Pail","description":"\u003ch2\u003eOMRI-Listed Soluble Zinc \u0026amp; Sulfur in a Resealable 20 lb Pail\u003c\/h2\u003e\u003cp\u003eThis zinc sulfate monohydrate fine powder delivers \u003cstrong\u003e35.5% zinc\u003c\/strong\u003e and \u003cstrong\u003e17.5% sulfur\u003c\/strong\u003e in a 100% water-soluble formula — packaged in a resealable hard plastic pail with screw-top lid for easy handling, precise dispensing, and moisture-free storage. OMRI listed and certified for use in organic agriculture, it's the go-to zinc source for growers correcting deficiencies across soil, foliar, and hydroponic programs.\u003c\/p\u003e\u003cp\u003eZinc drives growth hormone production, chlorophyll synthesis, carbohydrate metabolism, and cellular respiration. Deficiency shows up fast — stunted growth, interveinal chlorosis, and reduced yields. This fast-acting powder gets it back on track quickly.\u003c\/p\u003e\u003ch3\u003eNutrient Analysis\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZinc (Zn):\u003c\/strong\u003e 35.5% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 17.5%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead (Pb):\u003c\/strong\u003e 0.01% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIron (Fe):\u003c\/strong\u003e 1.0% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCadmium (Cd):\u003c\/strong\u003e 0.01% maximum\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine (Cl):\u003c\/strong\u003e 1.0% maximum\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication Rates\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFoliar:\u003c\/strong\u003e 2–5 lb\/acre\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydroponic stock solution:\u003c\/strong\u003e Dissolve 0.6 g per liter of water; apply at 1–10 mL\/gallon of working solution to achieve 0.2–2.0 ppm zinc\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstant-feed systems:\u003c\/strong\u003e Maintain 0.1–2.0 ppm zinc in nutrient solution\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSoil application:\u003c\/strong\u003e Broadcast or dissolve and drench to correct zinc-deficient soils\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI listed\u003c\/strong\u003e — certified for use in certified organic production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e100% water soluble\u003c\/strong\u003e — fully dissolves for foliar, fertigation, and hydroponic use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFine powder\u003c\/strong\u003e — rapid dissolution with minimal agitation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eResealable hard plastic pail\u003c\/strong\u003e — screw-top lid keeps contents dry between uses; stackable and easy to store\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20 lb size\u003c\/strong\u003e — ideal for small-to-mid scale operations, trials, and growers who prefer smaller pack sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eState restrictions:\u003c\/strong\u003e Not available for shipment to Oregon.\u003c\/p\u003e","brand":"Zinc Nacional","offers":[{"title":"Default Title","offer_id":42225615339604,"sku":"ZN-SUL-FINE-MAX360-20LB-PAIL","price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/image_f3eacb24-5ea3-4aac-99b4-d37751a5017b.png?v=1774387963"},{"product_id":"potassium-magnesium-sulfate-kms-ultrafines-1-lb","title":"KMS UltraFines Potassium Magnesium Sulfate 1 lb","description":"\u003ch2\u003eKMS UltraFines Potassium Magnesium Sulfate — 1 lb\u003c\/h2\u003e\n\u003cp\u003eKMS UltraFines is a natural, OMRI-certified source of three essential plant nutrients — \u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e, \u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e, and \u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — in a single, ultra-fine particle size optimized for rapid dissolution in water. Derived from langbeinite, a naturally occurring mineral, KMS delivers all three nutrients simultaneously in immediately plant-available sulfate forms.\u003c\/p\u003e\n\u003cp\u003eOne gram dissolved in one gallon of water yields \u003cstrong\u003e48 ppm potassium\u003c\/strong\u003e, \u003cstrong\u003e29 ppm magnesium\u003c\/strong\u003e, and \u003cstrong\u003e58 ppm sulfur\u003c\/strong\u003e — making KMS UltraFines ideal for precision hydroponic and fertigation programs where accurate nutrient ratios are critical.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e — chloride-free potassium source; safe for sensitive crops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e — essential for chlorophyll production and enzyme activation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — sulfate form; immediately plant-available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-fine particle size\u003c\/strong\u003e — rapid, complete dissolution with no residue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI certified organic\u003c\/strong\u003e — approved for use in certified organic production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNaturally derived\u003c\/strong\u003e — mined langbeinite; no synthetic processing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic and soilless nutrient programs\u003c\/li\u003e\n\u003cli\u003eFertigation and drip irrigation systems\u003c\/li\u003e\n\u003cli\u003eMagnesium and sulfur supplementation in K-P-K programs\u003c\/li\u003e\n\u003cli\u003eOrganic crop production (OMRI certified)\u003c\/li\u003e\n\u003cli\u003eChloride-sensitive crops — berries, specialty crop, tobacco, vegetables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e 0-0-22 + 11% Mg + 22% S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium (K):\u003c\/strong\u003e 22% | Potassium (K₂O): 26%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnesium (Mg):\u003c\/strong\u003e 11%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 22% sulfate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilution:\u003c\/strong\u003e 1g\/gallon yields 48 ppm K, 29 ppm Mg, 58 ppm S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e UltraFines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e OMRI Listed for organic use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 1 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e KMS-ULTRAFINES-1lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20OMRI%20Certificate.pdf\" target=\"_blank\"\u003eOMRI Certificate\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20Potassium%20Magnesium%20Sulfate%20Specifications.pdf\" target=\"_blank\"\u003eProduct Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/Diamond%20K%20KMS%20MSDS.pdf\" target=\"_blank\"\u003eSafety Data Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225615568980,"sku":"KMS-ULTRAFINES-1lb.","price":6.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Diamond_20Klarge_20optimized.jpg?v=1752679032"},{"product_id":"potassium-magnesium-sulfate-kms-ultrafines-17-5-lb","title":"KMS UltraFines Potassium Magnesium Sulfate 17.5 lb","description":"\u003ch2\u003eKMS UltraFines Potassium Magnesium Sulfate — 17.5 lb\u003c\/h2\u003e\n\u003cp\u003eKMS UltraFines is a natural, OMRI-certified source of three essential plant nutrients — \u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e, \u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e, and \u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — in a single, ultra-fine particle size optimized for rapid dissolution in water. Derived from langbeinite, a naturally occurring mineral, KMS delivers all three nutrients simultaneously in immediately plant-available sulfate forms.\u003c\/p\u003e\n\u003cp\u003eOne gram dissolved in one gallon of water yields \u003cstrong\u003e48 ppm potassium\u003c\/strong\u003e, \u003cstrong\u003e29 ppm magnesium\u003c\/strong\u003e, and \u003cstrong\u003e58 ppm sulfur\u003c\/strong\u003e — making KMS UltraFines ideal for precision hydroponic and fertigation programs where accurate nutrient ratios are critical.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e — chloride-free potassium source; safe for sensitive crops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e — essential for chlorophyll production and enzyme activation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — sulfate form; immediately plant-available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-fine particle size\u003c\/strong\u003e — rapid, complete dissolution with no residue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI certified organic\u003c\/strong\u003e — approved for use in certified organic production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReclosable 2-gallon container\u003c\/strong\u003e — resealable for easy storage and handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic and soilless nutrient programs\u003c\/li\u003e\n\u003cli\u003eFertigation and drip irrigation systems\u003c\/li\u003e\n\u003cli\u003eMagnesium and sulfur supplementation in K-P-K programs\u003c\/li\u003e\n\u003cli\u003eOrganic crop production (OMRI certified)\u003c\/li\u003e\n\u003cli\u003eChloride-sensitive crops — berries, specialty crop, tobacco, vegetables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e 0-0-22 + 11% Mg + 22% S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium (K):\u003c\/strong\u003e 22% | Potassium (K₂O): 26%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnesium (Mg):\u003c\/strong\u003e 11%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 22% sulfate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilution:\u003c\/strong\u003e 1g\/gallon yields 48 ppm K, 29 ppm Mg, 58 ppm S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e UltraFines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e OMRI Listed for organic use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 17.5 lb reclosable 2-gallon container\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e KMS-ULTRAFINES-17.5lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20OMRI%20Certificate.pdf\" target=\"_blank\"\u003eOMRI Certificate\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20Potassium%20Magnesium%20Sulfate%20Specifications.pdf\" target=\"_blank\"\u003eProduct Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/Diamond%20K%20KMS%20MSDS.pdf\" target=\"_blank\"\u003eSafety Data Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamond K","offers":[{"title":"Default Title","offer_id":42225615634516,"sku":"KMS-ULTRAFINES-17.5lb","price":22.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Diamond_20Klarge_20optimized_2801ebc0-a09b-4198-a991-a6d8d67fbbb1.jpg?v=1752679033"},{"product_id":"potassium-magnesium-sulfate-kms-ultrafines-4-lb","title":"KMS UltraFines Potassium Magnesium Sulfate 4 lb","description":"\u003ch2\u003eKMS UltraFines Potassium Magnesium Sulfate — 4 lb\u003c\/h2\u003e\n\u003cp\u003eKMS UltraFines is a natural, OMRI-certified source of three essential plant nutrients — \u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e, \u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e, and \u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — in a single, ultra-fine particle size optimized for rapid dissolution in water. Derived from langbeinite, a naturally occurring mineral, KMS delivers all three nutrients simultaneously in immediately plant-available sulfate forms.\u003c\/p\u003e\n\u003cp\u003eOne gram dissolved in one gallon of water yields \u003cstrong\u003e48 ppm potassium\u003c\/strong\u003e, \u003cstrong\u003e29 ppm magnesium\u003c\/strong\u003e, and \u003cstrong\u003e58 ppm sulfur\u003c\/strong\u003e — making KMS UltraFines ideal for precision hydroponic and fertigation programs where accurate nutrient ratios are critical.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e — chloride-free potassium source; safe for sensitive crops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e — essential for chlorophyll production and enzyme activation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — sulfate form; immediately plant-available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-fine particle size\u003c\/strong\u003e — rapid, complete dissolution with no residue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI certified organic\u003c\/strong\u003e — approved for use in certified organic production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReclosable container\u003c\/strong\u003e — resealable 4 lb container for easy storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic and soilless nutrient programs\u003c\/li\u003e\n\u003cli\u003eFertigation and drip irrigation systems\u003c\/li\u003e\n\u003cli\u003eMagnesium and sulfur supplementation in K-P-K programs\u003c\/li\u003e\n\u003cli\u003eOrganic crop production (OMRI certified)\u003c\/li\u003e\n\u003cli\u003eChloride-sensitive crops — berries, specialty crop, tobacco, vegetables\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e 0-0-22 + 11% Mg + 22% S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium (K):\u003c\/strong\u003e 22% | Potassium (K₂O): 26%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnesium (Mg):\u003c\/strong\u003e 11%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 22% sulfate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilution:\u003c\/strong\u003e 1g\/gallon yields 48 ppm K, 29 ppm Mg, 58 ppm S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e UltraFines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e OMRI Listed for organic use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 4 lb reclosable container\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e KMS-ULTRAFINES-4lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20OMRI%20Certificate.pdf\" target=\"_blank\"\u003eOMRI Certificate\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/KMS%20Potassium%20Magnesium%20Sulfate%20Specifications.pdf\" target=\"_blank\"\u003eProduct Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/customhydronutrients.com\/zencart\/download\/Diamond%20K%20KMS%20MSDS.pdf\" target=\"_blank\"\u003eSafety Data Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Custom Hydro","offers":[{"title":"Default Title","offer_id":42225615798356,"sku":"KMS-ULTRAFINES-4lb.","price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/Diamond_20Klarge_20optimized_fc5b4ab8-f0ec-4c41-843c-482f0f826dd4.jpg?v=1752679034"},{"product_id":"diamond-k-ultrafines-kms-50-lb","title":"Diamond K KMS UltraFines Potassium Magnesium Sulfate 50 lb","description":"\u003ch2\u003eDiamond K KMS UltraFines Potassium Magnesium Sulfate — 50 lb\u003c\/h2\u003e\n\u003cp\u003eDiamond K KMS UltraFines is a premium, OMRI-certified natural source of three essential plant nutrients — \u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e, \u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e, and \u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — derived from langbeinite, a naturally occurring mineral mined in the USA. The ultra-fine particle size ensures rapid, complete dissolution in water, making Diamond K KMS the preferred potassium-magnesium-sulfur source for professional hydroponic and fertigation programs.\u003c\/p\u003e\n\u003cp\u003eOne gram dissolved in one gallon of water yields \u003cstrong\u003e48 ppm potassium\u003c\/strong\u003e, \u003cstrong\u003e29 ppm magnesium\u003c\/strong\u003e, and \u003cstrong\u003e58 ppm sulfur\u003c\/strong\u003e. By addressing potassium, magnesium, and sulfur simultaneously, Diamond K KMS eliminates the need for separate magnesium and sulfur inputs in most nutrient programs.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% potassium (K)\u003c\/strong\u003e — chloride-free potassium source; safe for sensitive crops\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e11% magnesium (Mg)\u003c\/strong\u003e — essential for chlorophyll production and enzyme activation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e22% sulfur (S)\u003c\/strong\u003e — sulfate form; immediately plant-available\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUltra-fine particle size\u003c\/strong\u003e — rapid, complete dissolution with no residue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOMRI certified organic\u003c\/strong\u003e — approved for use in certified organic production\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree nutrients in one\u003c\/strong\u003e — eliminates need for separate Mg and S inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydroponic and soilless nutrient programs\u003c\/li\u003e\n\u003cli\u003eFertigation and drip irrigation systems\u003c\/li\u003e\n\u003cli\u003eMagnesium and sulfur supplementation in K-P-K programs\u003c\/li\u003e\n\u003cli\u003eOrganic crop production (OMRI certified)\u003c\/li\u003e\n\u003cli\u003eChloride-sensitive crops — berries, specialty crop, tobacco, vegetables\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnalysis:\u003c\/strong\u003e 0-0-22 + 11% Mg + 22% S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium (K):\u003c\/strong\u003e 22% | Potassium (K₂O): 26%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnesium (Mg):\u003c\/strong\u003e 11%\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur (S):\u003c\/strong\u003e 22% sulfate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDilution:\u003c\/strong\u003e 1g\/gallon yields 48 ppm K, 29 ppm Mg, 58 ppm S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e UltraFines\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e OMRI Listed for organic use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 50 lb\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Diamond K\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e DKG-KMS-ULTFNE-50lb\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDocumentation\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/KMS-2026.pdf?v=1773501537\" target=\"_blank\" title=\"O.M.R.I. certificate for Diamond K brand KMS ultrafines 0-0-21.5\" rel=\"noopener\"\u003eOMRI Certificate\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/KMSproductSheet-sm.pdf?v=1773501541\" target=\"_blank\" title=\"Specification Sheet\" rel=\"noopener\"\u003eProduct Specifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/potassium-magnesium-sulfate-product-sds.pdf?v=1773501535\" target=\"_blank\" title=\"Safety Data Sheet\" rel=\"noopener\"\u003eSafety Data Sheet\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/potassium-magnesium-sulfate-product-information-brochure.pdf?v=1773501542\" target=\"_blank\" title=\"Product Information Brochure- Diamond K 0-0-21.5 KMS Ultrafines\" rel=\"noopener\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Diamond K","offers":[{"title":"Default Title","offer_id":42225616093268,"sku":"DKG-KMS-ULTFNE-50lb.","price":44.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/DIAMOND-KMS_l.jpg?v=1773500856"},{"product_id":"sil-matrix-lc-soluble-potassium-silicate-2-5-gallon","title":"Sil-MATRIX LC Potassium Silicate 2.5 Gallon","description":"\u003ch2\u003eSil-MATRIX™ LC Soluble Potassium Silicate Biopesticide – 2.5 Gallon\u003c\/h2\u003e\u003cp\u003eSil-MATRIX LC is an OMRI-listed, fully soluble potassium silicate biopesticide with dual activity as a fungicide, insecticide, and miticide. Approved for use in certified organic production systems under the USDA National Organic Program. Suitable for vegetables, fruits, hemp, specialty crop, nuts, vine crops, agronomic crops, ornamentals, and turf.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOMRI listed — approved for certified organic production\u003c\/li\u003e\n\u003cli\u003eControls powdery mildew and other fungal diseases\u003c\/li\u003e\n\u003cli\u003eSuppresses spider mites, whiteflies, and other soft-bodied insects\u003c\/li\u003e\n\u003cli\u003eContact and repellent modes of action — soft on beneficial insects\u003c\/li\u003e\n\u003cli\u003eSAR inducer — stimulates plant’s natural defense responses\u003c\/li\u003e\n\u003cli\u003eDecreases climate stress and improves crop vigor and quality\u003c\/li\u003e\n\u003cli\u003eCan be applied as foliar spray or in hydroponic nutrient solution\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePowdery Mildew Activity\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePreventative fungicidal activity against powdery mildew\u003c\/li\u003e\n\u003cli\u003eAmplifies plant defense responses to fungal infection\u003c\/li\u003e\n\u003cli\u003eReduces incidence and severity under low to heavy disease pressure\u003c\/li\u003e\n\u003cli\u003eNote: preventative use only — will not eradicate established powdery mildew\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplication as Silicon Source in Nutrient Solutions\u003c\/h3\u003e\u003cp\u003eUse 0.47 mL (0.634 g) per gallon of nutrient solution to deliver 16.33 ppm Si and 11 ppm K. Equivalent to 0.25 g\/gallon of AgSil 16H. Compatible with automated injection systems — see our blog for concentrate preparation guidance.\u003c\/p\u003e\u003ch3\u003eApplication Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRecommended rate: 3 qt\/100 gal\/acre as part of an IPM program\u003c\/li\u003e\n\u003cli\u003eCan be tank-mixed with other fungicides and insecticides (check compatibility first)\u003c\/li\u003e\n\u003cli\u003eRaises solution pH — add to water before other nutrients\u003c\/li\u003e\n\u003cli\u003eREI: 4 hours | PHI: 0 days\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSafety\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eWear goggles or face shield when handling concentrate\u003c\/li\u003e\n\u003cli\u003eChemical-resistant gloves and coveralls required\u003c\/li\u003e\n\u003cli\u003eCauses moderate eye irritation — avoid contact with eyes and skin\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PQ Corporation","offers":[{"title":"Default Title","offer_id":42225616126036,"sku":"Certis-SilMatrix-2.5gal.","price":93.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0617\/5365\/5380\/files\/1247670_sil-matrix_LC_600x600_6df97b6f-067a-46c9-a342-701ff9a43dca.jpg?v=1752679036"}],"url":"https:\/\/customhydronutrients.com\/collections\/specialty-crop-fertilizers.oembed?page=3","provider":"Custom Hydro","version":"1.0","type":"link"}