--- product_id: 76739056 title: "General Hydroponics pH Down Liquid Fertilizer, 1-Quart" brand: "general hydroponics" price: "SAR 64" currency: SAR in_stock: true reviews_count: 5 url: https://www.desertcart.com.sa/products/76739056-general-hydroponics-ph-down-liquid-fertilizer-1-quart store_origin: SA region: Saudi Arabia --- # Precise pH adjustment control Lightweight 1-quart liquid container Food-grade phosphoric acid formula General Hydroponics pH Down Liquid Fertilizer, 1-Quart **Brand:** general hydroponics **Price:** SAR 64 **Availability:** ✅ In Stock ## Summary > 🌿 Take control of 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?** SAR 64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.com.sa](https://www.desertcart.com.sa/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 premium phosphoric acid trusted by pros. - • **Consistent Stability:** Maintains steady pH levels to maximize nutrient uptake. - • **Precision pH Mastery:** Easily dial in optimal nutrient pH for peak plant performance. - • **Lightweight & Easy Handling:** 1-quart size designed for effortless measuring and application. - • **Trusted by Growers Worldwide:** Proven reliability with 4.7-star rating from 6,000+ users. ## Overview General Hydroponics pH Down Liquid Fertilizer is a 1-quart acid solution using food-grade phosphoric acid to safely and effectively lower nutrient pH levels. Lightweight and easy to handle, it ensures consistent pH stability critical for optimal plant nutrient absorption. Trusted by thousands of growers, it delivers precise control to keep your hydroponic or soil grows thriving. ## 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. Review: Hydroponics must have! Review: If this isn’t working for you, you have another problem… ## Features - Causes severe skin burns and eye damage. - 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 | |---------------|-------| | ASIN | B00CJID1I4 | | Brand | General Hydroponics | | Brand Name | General Hydroponics | | Customer Reviews | 4.8 out of 5 stars 6,491 Reviews | | Global Trade Identification Number | 00793094015325 | | Item Form | Liquid | | Item Weight | 1.18 kg | | Item form | Liquid | | Item weight | 1.18 kg | | Manufacturer | General Hydroponics | | Manufacturer Part Number | HGC722120 | | Model Number | HGC722120 | | Number of Items | 1 | | Number of items | 1 | | UPC | 793094015325 | | Unit Count | 1.0 count | ## Product Details - **Brand:** General Hydroponics - **Global Trade Identification Number:** 00793094015325 - **Item form:** Liquid - **Item weight:** 1.18 kg - **UPC:** 793094015325 ## Images ![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 1](https://m.media-amazon.com/images/I/61fv0jbZAFL.jpg) ![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 2](https://m.media-amazon.com/images/I/719SLzGKCmL.jpg) ![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 3](https://m.media-amazon.com/images/I/71rKg15KX0L.jpg) ![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 4](https://m.media-amazon.com/images/I/817BxsvrrxL.jpg) ![General Hydroponics pH Down Liquid Fertilizer, 1-Quart - Image 5](https://m.media-amazon.com/images/I/71pGOIq19uL.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. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Hydroponics must have! *by S***N on 2 April 2024* ### ⭐⭐⭐⭐⭐ If this isn’t working for you, you have another problem… *by T***E on 24 June 2022* ### ⭐⭐⭐⭐⭐ 良い *by く***び on 4 May 2026* ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.com.sa/products/76739056-general-hydroponics-ph-down-liquid-fertilizer-1-quart](https://www.desertcart.com.sa/products/76739056-general-hydroponics-ph-down-liquid-fertilizer-1-quart) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-05-10*