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Use Quick Order to find products across the Custom Hydro catalog. Confirm the exact product, package size and quantity before adding items to your order. Review individual listings whenever you need formulation details, specifications or product-specific purchasing information.

  • Potassium Nitrate Fertilizer 1 lb – Haifa Multi-K GG Haifa Multi-K GG potassium nitrate fertilizer, 1 lb repack. Typical analysis: 13.5% nitrate nitrogen and 46.2% K₂O; minimum specifications: 13.1% and 46.0%.
    Potassium Nitrate Fertilizer 1 lb – Haifa Multi-K...
    Grower Price
    Potassium Nitrate Fertilizer 1 lb – Haifa Multi-K...
    $7.32
    $15.00 $7.32
    Grower Price
  • Monoammonium Phosphate 12-61-0 fertilizer 20 lb.
    Monoammonium Phosphate 12-61-0 fertilizer 20 lb.
    Monoammonium Phosphate 12-61-0 fertilizer 20 lb.
    $75.13
    $0.00 $75.13
  • Kelp meal fertilizer 1-0-2 4 lb clear resealable ziplock bag with dark green-brown kelp meal inside Kelp meal fertilizer 1-0-2 finely milled organic amendment
    Kelp Meal Fertilizer 1-0-2 4 lb
    Kelp Meal Fertilizer 1-0-2 4 lb
    $9.00
    $0.00 $9.00
  • PeKacid 0-60-20 fertilizer 1 lb.
    PeKacid 0-60-20 fertilizer 1 lb.
    PeKacid 0-60-20 fertilizer 1 lb.
    $13.00
    $0.00 $13.00
  • Magnesium EDTA 6% fertilizer 4 lb.
    Magnesium EDTA 6% fertilizer 4 lb.
    Magnesium EDTA 6% fertilizer 4 lb.
    $46.10
    $0.00 $46.10
  • Metalosate Manganese fertilizer container with a colorful display of fruits and vegetables on a white background Metalosate Manganese Organic 5 lb.
    Metalosate Manganese Organic 5 lb.
    Grower Price
    Metalosate Manganese Organic 5 lb.
    $96.91
    $143.80 $96.91
    Grower Price
  • Peters Peat Lite Special 10-30-20 Plant Starter - 25 lb
    Peters Peat Lite Special 10-30-20 Plant Starter -...
    Grower Price
    Peters Peat Lite Special 10-30-20 Plant Starter -...
    $74.30
    $92.70 $74.30
    Grower Price
  • Potassium Nitrate fertilizer 50 lb. bucket Haifa Multi-K GG potassium nitrate fertilizer, 50 lb bucket containing five 10 lb bags. Typical analysis: 13.5% nitrate nitrogen and 46.2% K₂O; minimum specifications: 13.1% and 46.0%.
    Potassium Nitrate Fertilizer 50 lb Bucket – Haifa...
    Potassium Nitrate Fertilizer 50 lb Bucket – Haifa...
    $98.47
    $0.00 $98.47
  • Calcium Carbonate 4 lb.
    Calcium Carbonate 4 lb.
    Calcium Carbonate 4 lb.
    $2.55
    $0.00 $2.55
  • Iron Sulfate Heptahydrate 1 lb.
    Iron Sulfate Heptahydrate, 20% Iron | 1 lb
    Iron Sulfate Heptahydrate, 20% Iron | 1 lb
    $4.75
    $0.00 $4.75
  • Roots Organic Terp Tea Bloom 40 lb. bag of organic cannabis fertilizer. Roots Organics Terp Tea Bloom 40lb
    Roots Organics Terp Tea Bloom 40 lb
    Grower Price
    Roots Organics Terp Tea Bloom 40 lb
    $100.23
    $156.59 $100.23
    $2.51 lb
    Grower Price
  • Potassium Hydroxide flake caustic potash 1 lb.
    Potassium Hydroxide Flake 0-0-75 | 1 lb
    Potassium Hydroxide Flake 0-0-75 | 1 lb
    $11.95
    $0.00 $11.95
  • ZeroTol 2.0 Algaecide/Bactericide/Fungicide 2.5 gal. ZeroTol 2.0 Algaecide/Bactericide/Fungicide 2.5 gal. digital 1
    ZeroTol 2.0 Algaecide, Bactericide & Fungicide | 2.5...
    Grower Price
    ZeroTol 2.0 Algaecide, Bactericide & Fungicide | 2.5...
    $113.72
    $154.99 $113.72
    $45.49 gal
    Grower Price
  • Potassium Nitrate RECI, 50 lb. bucket Potassium Nitrate Fertilizer 50 lb Bucket – Haifa Multi-K RECI
    Potassium Nitrate Fertilizer 50 lb Bucket – Haifa...
    Potassium Nitrate Fertilizer 50 lb Bucket – Haifa...
    $98.47
    $0.00 $98.47
  • Coco-Wet Organic Wetting Agent 1 gallon
    Coco-Wet Organic Wetting Agent 1 Gallon
    Grower Price
    Coco-Wet Organic Wetting Agent 1 Gallon
    $74.21
    $92.99 $74.21
    Grower Price
  • Copper Sulfate 8 oz.
    Copper Sulfate 8 oz.
    Copper Sulfate 8 oz.
    $8.50
    $0.00 $8.50

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