Water Soluble Potassium
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Di-Potassium Phosphate 0-41-54
Acid-free phosphate fertilizer for Nutrigation and foliar application Soil pH is...
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Haifa GrowClean potassium polyphosphate
Haifa GrowClean™ - Sodium free phosphate fertilizer with cleaning effect Keeping the...
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Mono-Potassium Phosphate 0-52-34
Buy MKP 0-52-34 fertilizer for hydroponics, fertigation, and foliar nutrition of plants....
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PeKacid 0-60-20
PeKacid 0-60-20 is ICL SF’s patented water-soluble PK fertilizer which is ideal...
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Potassium Hydroxide
Potassium hydroxide flake, caustic potash 0-0-75 FERTILIZER GRADE Hazardous material, CORROSIVE Produced...
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Potassium Nitrate
Potassium Nitrate provides an N:K balance of 13:46 which makes the ideal...
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Potassium Silicate
AgSil® Potassium Silicate: Soluble Silicate for Agriculture AgSil® potassium silicate offers growers...
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Potassium Sulfate
Unlock High Yields with SOP Fertilizer Potassium sulfate, ideal fertilizer for high-demand...
Extremely pure water soluble potassium fertilizers for fertigation, foliar and hydroponics!
Custom Hydro specializes in stocking the purest most soluble fertilizer materials available anywhere. We have Haifa SOP 0-0-52 greenhouse grade sulfate of potash. Protassium 3 IX the purest potassium sulfate on the market. We also stock Haifa RECI potassium nitrate, the only potassium nitrate to guarantee an ultra-LOW maximum sodium content. This potassium nitrate is perfect for closed loop hydroponic systems. Our wide selection also includes MKP 0-52-34, PeKacid 0-60-20, MagPhos 0-55-18, Potassium Chloride 0-0-61 and Potassium Silicate fertilizers.
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ICL PeaK MKP...Regular price $74.28Regular priceUnit price per$124.50Sale price $74.28Sold out -
AgSil 16H Potassium...Regular price $337.16Regular priceUnit price per$507.00Sale price $337.16Sold out -
ICL PeaK MKP...Regular price $18.66Regular priceUnit price per$37.00Sale price $18.66Sale -
Haifa SOP GG...Regular price $47.32Regular priceUnit price per
$60.00Sale price $47.32Sale -
Haifa MKP 0-52-34...Regular price $74.73Regular priceUnit price per
$99.00Sale price $74.73Sale -
Protassium+ SOP 3IX...Regular price $60.98Regular priceUnit price per
$91.70Sale price $60.98Sale -
ICL PeaK MKP...Regular price $8.48Regular priceUnit price per$16.96Sale price $8.48Sale -
Potassium Sulfate 0-0-53...Regular price $13.25Regular priceUnit price per
$0.00Sale price $13.25 -
Potassium Sulfate 0-0-53...Regular price $33.94Regular priceUnit price per
$0.00Sale price $33.94 -
Potassium Carbonate 50lb.Regular price $96.43Regular priceUnit price per
$120.35Sale price $96.43Sale -
ICL PeaK MKP...Regular price $47.28Regular priceUnit price per$94.56Sale price $47.28Sale -
Organic SOP 0-0-50...Regular price $65.60Regular priceUnit price per
$98.66Sale price $65.60Sale -
Potassium Nitrate 20...Regular price $41.78Regular priceUnit price per
$83.00Sale price $41.78Sale -
PeKacid 0-60-20 fertilizer...Regular price $22.00Regular priceUnit price per
$0.00Sale price $22.00 -
Haifa GrowClean 5-31-40...Regular price $129.05Regular priceUnit price per
$161.00Sale price $129.05Sold out -
PeKacid 0-60-20 Fertilizer...Regular price $121.35Regular priceUnit price per
$161.50Sale price $121.35Sale
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