---
product_id: 76739056
title: "General Hydroponics pH Down Liquid Fertilizer, 1-Quart"
brand: "general hydroponics"
price: "S/.155"
currency: PEN
in_stock: false
url: https://www.desertcart.pe/products/76739056-general-hydroponics-ph-down-liquid-fertilizer-1-quart
store_origin: PE
region: Peru
---

# Precision pH lowering Food-grade phosphoric acid Stable nutrient environment General Hydroponics pH Down Liquid Fertilizer, 1-Quart

**Brand:** general hydroponics
**Price:** S/.155
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Master your grow with precision pH power!

## Quick Answers

- **What is this?** General Hydroponics pH Down Liquid Fertilizer, 1-Quart by general hydroponics
- **How much does it cost?** S/.155 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/76739056-general-hydroponics-ph-down-liquid-fertilizer-1-quart)

## Best For

- general hydroponics enthusiasts

## Why This Product

- Trusted general hydroponics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Food-Grade Safety:** Formulated with food-grade phosphoric acid for safe, reliable use.
- • **Optimize Your Grow:** Maintain ideal nutrient conditions to maximize yield and quality.
- • **Precision pH Control:** Easily adjust nutrient pH to optimal levels for peak plant health.
- • **Consistent Performance:** Trusted by growers worldwide for stable and predictable pH management.
- • **Lightweight & Easy to Handle:** Powdered formula ships and stores lighter than liquids—convenience meets efficiency.

## Overview

General Hydroponics pH Down Liquid Fertilizer is a 1-quart acid formulation using food-grade phosphoric acid designed to lower and stabilize nutrient solution pH. Lightweight and easy to handle, it ensures consistent, reliable pH control for optimal hydroponic plant growth.

## Description

Product Description               The acid formulation uses food grade phosphoric acid to lower the pH to the proper level. This powdered acid formula is easy to handle and ship. Lightweight in comparison to liquids. Widely recognized as a consistent and reliable product.                  Directions               Add to nutrient solution to lower pH when it's too high. Use as directed to maintain proper pH levels.

## Features

- Acid formulation uses food grade phosphoric acid
- Add when your nutrient pH is too high in order to lower the pH to the proper level
- Promotes pH stability

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 8.26 x 8.26 x 22.23 cm; 1.18 kg |
| Part number | HGC722120 |
| Item display height | 9 inches |
| Item display length | 3.5 inches |
| Item display width | 3.4 inches |
| Item display weight | 1.36 kg |
| Manufacturer | General Hydroponics |
| Item model number | HGC722120 |
| ASIN | B00CJID1I4 |

## Product Details

- **Brand:** General Hydroponics
- **Item weight:** 2.6 Pounds
- **Item form:** Liquid
- **UPC:** 793094015325
- **Global Trade Identification Number:** 00793094015325

## Images

![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 1](https://m.media-amazon.com/images/I/71wWztjceeL.jpg)
![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 2](https://m.media-amazon.com/images/I/710jFIH3bSL.jpg)
![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 3](https://m.media-amazon.com/images/I/71W8CoPvNWL.jpg)
![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 4](https://m.media-amazon.com/images/I/31sdMHDuyGL.jpg)

## Questions & Answers

**Q: What is the amount per gallon mixing ratio?**
A: I use up to 3-4ml per gallon sometimes, depending on my nutrients, water and stage of plant growth. It will vary depending on what you're growing and where your particular plant's needs fall on the nutrient/ph charts. For hydroponics/coir it is recommended by manufacturer to range between 5.5 and 6.5.

**Q: can you list ingredients with %.  Thank you!**
A: exact amounts are a trade secret however the MSDS on this states:Phosphoric acid 10 - 30%Ammonium dihydrogenorthophosphate 5 - 10%Citric acid 5 - 10%in comparison the dyna-gro ph down has:Phosphoric Acid H3PO4 33%Nitric Acid HNO3 11.5%That being said there are benefits to some of these ingredients. N-NitrogenP-PhosphorusK-PotassiumPhosphoric acid provides: PAmmonium dihydrogenorthophosphate provides: N and PCitric acid: other than lowering ph, does nothing useful. made from oxygen and hydrogen not in any usable form as far as I can find.Nitric Acid provides: NOverall either product seems to provide similar benefits.Dyna-gro is half the cost.

**Q: ingredients? Concentration?**
A: It’s not organic if that’s what you mean ingredients. I haven’t used this in a long time. I want to say I’d use like 20ml for 5 gallons. I switched to another branf

**Q: Is this safe for aquaponics systems?**
A: I would think so. I use it to lower the pH of the water I use to water my plants sometimes, both inside and out.

## Frequently Bought Together

- General Hydroponics pH Down Liquid Premium Buffering For pH Stability, Quart
- General Hydroponics CALiMAGic 1-0-0, Concentrated Blend of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Quart
- VIVOSUN Digital pH and TDS Meter Kits, 0.01pH High Accuracy Pen Type pH Meter ± 2% Readout Accuracy 3-in-1 TDS EC Temperature Meter for Hydroponics, Pool and Aquarium, Yellow Blue, UL Certified

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*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-29*