--- product_id: 731948562 title: "General Hydroponics GH pH Down Paper Down 32oz" brand: "general hydroponics" price: "SAR 306" currency: SAR in_stock: true reviews_count: 9 url: https://www.desertcart.com.sa/products/731948562-general-hydroponics-gh-ph-down-paper-down-32oz store_origin: SA region: Saudi Arabia --- # Versatile for soil & hydroponics 946 ml precision liquid 1.18 kg weight for stability General Hydroponics GH pH Down Paper Down 32oz **Brand:** general hydroponics **Price:** SAR 306 **Availability:** ✅ In Stock ## Summary > 🌿 Master your grow with precision pH control! ## Quick Answers - **What is this?** General Hydroponics GH pH Down Paper Down 32oz by general hydroponics - **How much does it cost?** SAR 306 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/731948562-general-hydroponics-gh-ph-down-paper-down-32oz) ## 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 - • **Safety First:** Formulated for effective use with clear handling precautions to protect you and your plants. - • **Generous Volume:** Large 946 ml bottle ensures long-lasting use without frequent repurchasing. - • **Trusted Quality:** Backed by General Hydroponics, a leader in plant nutrition with 4.7-star rating. - • **Precision pH Control:** Easily adjust and maintain optimal pH levels for thriving plants. - • **Versatile Application:** Perfect for soil cultivation, hydroponics, and organic growing systems. ## Overview General Hydroponics GH pH Down is a 946 ml liquid solution designed to lower pH levels in soil and hydroponic systems, ensuring optimal nutrient uptake. Trusted by thousands with a 4.7-star rating, it supports healthy plant growth across various cultivation methods while emphasizing safe handling. ## Description [Precautions] Keep out of reach of children. Please handle with caution as it will burn if you touch it directly. Try to wear gloves or glasses. If you get it or see it, rinse it off under running water immediately. If swallowed, please go to the hospital and take care. User is responsible for proper use, storage, and disposal. ## Features - GENERAL HYDROPONICS GH pH Down prayer down 3.0 fl oz (946 ml) - Liquid type pH down agent - If the pH value of the potting liquid is too high, please mix small amounts at a time - Effective for soil cultivation, nutrients, hydroponics, and organic hydroponics ## Technical Specifications | Specification | Value | |---------------|-------| | Amazon Bestseller | #96,975 in DIY, Tools & Garden (See Top 100 in DIY, Tools & Garden) #573 in Garden Fertilizers | | Asin | B00CJID1I4 | | Brand Name | General Hydroponics | | Customer Reviews | 4.7 4.7 out of 5 stars (6,584) 4.7 out of 5 stars | | Global Trade Identification Number | 00793094015325 | | Item Form | Liquid | | Item Weight | 1.18 kg | | Manufacturer Part Number | HGC722120 | | Model Number | HGC722120 | | Unit Count | 946.0 Milliliters | | Upc | 793094015325 | ## Product Details - **GTIN (Global Trade Identification Number):** 00793094015325 - **UPC:** 793094015325 - **ブランド:** General Hydroponics - **商品の形状:** 液体 - **商品の重量:** 2.6 ポンド ## Images ![General Hydroponics GH pH Down Paper Down 32oz - Image 1](https://m.media-amazon.com/images/I/61fv0jbZAFL.jpg) ![General Hydroponics GH pH Down Paper Down 32oz - Image 2](https://m.media-amazon.com/images/I/719SLzGKCmL.jpg) ![General Hydroponics GH pH Down Paper Down 32oz - Image 3](https://m.media-amazon.com/images/I/71rKg15KX0L.jpg) ![General Hydroponics GH pH Down Paper Down 32oz - Image 4](https://m.media-amazon.com/images/I/817BxsvrrxL.jpg) ![General Hydroponics GH pH Down Paper Down 32oz - 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 ### ⭐⭐⭐⭐⭐ 良い *by on Reviewed in Japan May 4, 2026* good ### ⭐⭐⭐⭐⭐ 流石です。 *by on Reviewed in Japan April 11, 2026* 少しで、めちゃくちゃ下がりますよ。気をつけて使用して下さい。 ### ⭐⭐⭐⭐ 添加後に待ち時間が必要 *by on Reviewed in Japan June 14, 2025* Phの調整に最適ですが、結果が出るまで時間がかかります。添加後、最低30分ぐらいしてからPhを測らないと正確ではありません。添加してもあまり変わらないと思って、さらに添加すると30分後大変なことになります。1ml量れるスポイトがオススメ。 ## 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/731948562-general-hydroponics-gh-ph-down-paper-down-32oz](https://www.desertcart.com.sa/products/731948562-general-hydroponics-gh-ph-down-paper-down-32oz) --- *Product available on Desertcart Saudi Arabia* *Store origin: SA* *Last updated: 2026-08-15*