- Description
Technical Grade Phosphoric Acid 75% — 1 Gallon
Purified technical grade phosphoric acid for pH correction in hydroponic nutrient solutions, drip irrigation systems, and specialty liquid fertilizer mixes. At 75% concentration, this nearly clear, stable acid provides reliable pH reduction while also contributing phosphorus (0-55-0 fertilizer analysis) to your nutrient program — making it a dual-purpose choice for growers who want pH control with a nutritional benefit.
⚠️ HAZARDOUS MATERIAL — Corrosive liquid. UPS Ground shipping only. Handle with appropriate PPE. Review SDS before use.
Key Features
- 75% H₃PO₄ concentration — technical grade purity, purified by chemical and mechanical methods
- 0-55-0 fertilizer analysis — contributes phosphorus to the nutrient solution while correcting pH
- Nearly clear solution — stable formulation with no precipitates or sediment
- Compatible with all systems — suitable for hydroponic nutrient solutions, drip irrigation, and fertigation injection
- Dual purpose — pH correction and phosphorus supplementation in a single product
Applications
- Hydroponic nutrient solution pH adjustment
- Drip irrigation and fertigation pH correction
- Specialty liquid fertilizer mix acidification
- Alkalinity management in irrigation water
Specifications
- Concentration: 75% Phosphoric Acid (H₃PO₄)
- Fertilizer Analysis: 0-55-0
- Grade: Technical, purified
- Container: 1 gallon
- Shipping: UPS Ground only (hazmat)
- SKU: PHOS-ACID-1gal
- Weight: 12 lbs
Safety
Always add acid to water — never add water to acid. Wear chemical-resistant gloves, eye protection, and appropriate protective clothing when handling. Keep away from incompatible materials. Review the full SDS before use.
Phosphoric Acid 75% | 1 Gallon
Phosphoric Acid 75% | 1 Gallon
HAZ-MAT: UN1805, Phosphoric acid solution, 8, PGII
UPS HAZMAT FEE: $33.0
Questions about this item? Be the first to ask here.
Low stock: 3 left
Save even more with a Commercial Account
Qualified buyers save 5–12% on every order
Couldn't load pickup availability
Share:
Contact Us

What Makes Us Different
At the leading edge of the market, Custom Hydro stands out by providing the growing industry with fertilizers that are not only of premium quality but also feature innovative
solutions tailored for the unique needs of hydroponic and organic farming practices.
-
Premium Quality
The Mark of Trusted Quality.
-
Highest Purity
Never Compromise on the Quality of Inputs.
-
Crop Specific
Customized Fertilizer for your Favorite Crops.