--- product_id: 597234180 title: "General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon" brand: "general hydroponics" price: "SAR 642" currency: SAR in_stock: true reviews_count: 5 category: "General Hydroponics" url: https://www.desertcart.com.sa/products/597234180-general-hydroponics-ph-down-liquid-premium-buffering-for-stability-1 store_origin: SA region: Saudi Arabia --- # Precise pH adjustment (5.5-6.5) Food-grade phosphoric acid Promotes pH stability General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon **Brand:** general hydroponics **Price:** SAR 642 **Availability:** ✅ In Stock ## Summary > 🌿 Master your grow with precision pH power! ## Quick Answers - **What is this?** General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon by general hydroponics - **How much does it cost?** SAR 642 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/597234180-general-hydroponics-ph-down-liquid-premium-buffering-for-stability-1) ## 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 - • **Trusted by Pros:** Join the community of hydroponic experts who swear by this holy grail pH down solution. - • **Food-Grade Safety:** Formulated with premium phosphoric acid, ensuring safe and reliable use. - • **Consistent Stability:** Maintains nutrient solution balance to keep your plants thriving without fluctuations. - • **Precision pH Control:** Easily dial in the perfect 5.5-6.5 pH range for optimal plant health. - • **Economical & Effective:** Trusted by thousands with a 4.7-star rating—premium quality without the premium price. ## Overview General Hydroponics pH Down Liquid is a 1-gallon premium buffering solution using food-grade phosphoric acid to safely and effectively lower and stabilize nutrient pH levels between 5.5 and 6.5, ensuring optimal plant growth. Highly rated by thousands of growers, it delivers consistent, reliable results for hydroponic and soil applications. ## Description The Acid formulation uses food grade Phosphoric acid to lower the pH to the proper level. Widely recognized as a consistent and reliable product. Review: Arrived no leaks 🙏 - Works great arrived on time no leaking Review: Returning customer forever - For me this is my holy grail pH down and I will never need another. Others I have used in the past are more pricey and are either the same or less effective. This will always be my favorite, I am happy to have found it available here! ## 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 - Adjust by adding a little at a time - Recommended pH for most plants is 5.5 to 6.5 pH ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000FG0F9U | | Brand | General Hydroponics | | Brand Name | General Hydroponics | | Customer Reviews | 4.7 out of 5 stars 3,434 Reviews | | Global Trade Identification Number | 00793094015332 | | Item Form | Liquid | | Item Type Name | Premium Buffering For Stability | | Item Weight | 2 Pounds | | Item form | Liquid | | Item weight | 2 Pounds | | Manufacturer | Hawthorne Hydroponics, LLC | | Manufacturer Part Number | HGC722125 | | Model Number | HGC722125 | | Number of Items | 1 | | UPC | 714863970218 793094015332 | | Unit Count | 3785.41 Milliliters | ## Product Details - **Brand:** General Hydroponics - **Global Trade Identification Number:** 00793094015332 - **Item form:** Liquid - **Item weight:** 907 g - **UPC:** 714863970218 793094015332 ## Images ![General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - Image 1](https://m.media-amazon.com/images/I/61gukYk+JLL.jpg) ![General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - Image 2](https://m.media-amazon.com/images/I/71Yvsdpom1L.jpg) ![General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - Image 3](https://m.media-amazon.com/images/I/7140W88WK8L.jpg) ![General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - Image 4](https://m.media-amazon.com/images/I/817BxsvrrxL.jpg) ![General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - 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 ### ⭐⭐⭐⭐⭐ Arrived no leaks 🙏 *by R***O on 3 June 2026* Works great arrived on time no leaking ### ⭐⭐⭐⭐⭐ Returning customer forever *by A***R on 8 June 2026* For me this is my holy grail pH down and I will never need another. Others I have used in the past are more pricey and are either the same or less effective. This will always be my favorite, I am happy to have found it available here! ### ⭐⭐⭐⭐⭐ PH Down👇 *by J***S on 4 June 2026* Super fast shipping with top notch products ## Frequently Bought Together - General Hydroponics pH Down Liquid Premium Buffering For Stability, 1-Gallon - General Hydroponics CALiMAGic 1-0-0, Concentrated Blend Of Calcium & Magnesium, Secondary Nutrient Deficiencies Helps Prevent Blossom End Rot & Tip Burn, Clean, Soluble, 1-Gallon - General Hydroponics FloraBloom 0-5-4, Use With FloraMicro & FloraGro For A Tailor-Made Nutrient Mix, Provides Nutrients For Reproductive Growth, Ideal For Hydroponics, 1-Gallon --- ## 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/597234180-general-hydroponics-ph-down-liquid-premium-buffering-for-stability-1](https://www.desertcart.com.sa/products/597234180-general-hydroponics-ph-down-liquid-premium-buffering-for-stability-1) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-06-29*