--- product_id: 724945486 title: "General Hydroponics GH pH Control Kit 5 Pack (Ph Control Kit)" brand: "general hydroponics" price: "£49.95" currency: GBP in_stock: true reviews_count: 8 category: "General Hydroponics" url: https://www.desertcart.co.uk/products/724945486-general-hydroponics-gh-ph-control-kit-5-pack-ph-control store_origin: GB region: United Kingdom --- # 8 oz pH Up & Down solutions pH range 4.0-8.5 precision 5-pack reagent & test tubes General Hydroponics GH pH Control Kit 5 Pack (Ph Control Kit) **Brand:** general hydroponics **Price:** £49.95 **Availability:** ✅ In Stock ## Summary > 🌿 Master your grow with precision pH power! ## Quick Answers - **What is this?** General Hydroponics GH pH Control Kit 5 Pack (Ph Control Kit) by general hydroponics - **How much does it cost?** £49.95 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/724945486-general-hydroponics-gh-ph-control-kit-5-pack-ph-control) ## 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 - • **Compact & Portable:** Small 2.54 cm dimensions and lightweight design make it easy to carry and use anywhere. - • **Complete 5-Pack Kit:** Includes test tubes, reagents, color chart, and dropper—everything you need in one set. - • **Precision pH Control:** Accurately measure and adjust water pH from 4.0 to 8.5 for optimal hydroponic growth. - • **Trusted Hydroponics Brand:** From General Hydroponics, a leader in garden tech, ensuring reliable and consistent results. - • **Dual pH Adjustment Solutions:** 8 oz bottles of both pH Up (alkaline) and pH Down (acidic) for fine-tuning your water chemistry. ## Overview The General Hydroponics GH pH Control Kit 5 Pack is a professional-grade solution for hydroponic enthusiasts and gardeners, offering precise pH measurement from 4.0 to 8.5 with easy-to-use paper tests, plus 8 oz bottles of pH Up and pH Down solutions. Compact and complete, this kit empowers you to optimize nutrient uptake and maximize plant health with trusted accuracy. ## Description desertcart.co.jp: General Hydroponics GH pH Control Kit 5 Pack (Ph Control Kit) : DIY, Tools & Garden Review: Its serves it purpose - I think very effective when you need to manipulate the ph level of your water. Good products! Review: 素晴らしい。 ## Features - Paper Test Kit (Test Tube, Reagent, Color Contrast Chart), pH Up (Alkaline), and pH Down (Acidic) (8 oz.: 237 ml), plus a handy dropper for paper check. This paper test kit can measure pH from 4.0 to 8.5 ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000BNKWZY | | Amazon Bestseller | #80,809 in DIY, Tools & Garden ( See Top 100 in DIY, Tools & Garden ) #1,281 in Garden Fertilizers & Agrichemicals | | Item model number | HGC722080 | | Manufacturer | General Hydroponics | | Product Dimensions | 2.54 x 2.54 x 2.54 cm; 680.39 g | ## Product Details - **Brand:** General Hydroponics - **Manufacturer:** General Hydroponics - **UPC:** 793094000000 791090258012 604241324873 604241412792 799331041461 730162234745 793094015318 793094246675 793094015141 793094246439 802665888241 - **Global Trade Identification Number:** 00793094015141 ## Images ![General Hydroponics GH pH Control Kit 5 Pack (Ph Control Kit) - Image 1](https://m.media-amazon.com/images/I/71OwAFVsU0L.jpg) ## Questions & Answers **Q: I want the ph down only and would never need ph up. How can I buy just the single bottle of ph down?** A: Hi, one of the easiest ways to lower water Ph, is to use vinegar, I use white Vinegar, (I am unsure if you can use apple cider vinegar). I use the Ph test kit in the up/down kit with the chart supplied from the kit and when growing flowers, I needed the 5.5 Ph range. To start measure your water source to see what the Ph is before using anything to lower the Ph, then you have a base reference point established to know how much you will need to lower, In the up/down kit, is the supplied dropper (any dropper is okay), I use it to draw out the vinegar and I use Iceland water the natural normal Ph in that bottle is 8.8, give or take, so then in 1.5 liters I have dropped 13 drops to reduce the Ph to 5.5 +\- .3 Ph, and that is how I do it. Good luck. Disclaimer: this esoteric version I am only sharing, you are on your own, heheh... **Q: Is it common for the PH up bottle to leak all over someone’s carpet?** A: No, it is not very common for the PH up bottle to leak all over someone's carpet but it is quite common for it to leak all over someone's laminate floor and also someone's ceramic tile floor. Vinyl floor not so much but it does happen on occasion. This is because vinyl is easier to clean so the PH up bottle has a natural tendency to not want to leak onto the vinyl. Contrary to popular belief it is also quite common for the PH up bottle to leak all over furniture. Especially antique furniture made from oak and also black walnut wood. Hope this helps. **Q: even if i just need to lower the PH is it important to add a little of the PH up along with the PH down when lowering the PH?** A: No you don't ever want to use ph up and ph down in the same container it's either ph up or ph down one or the other because you will mess your plants up putting both up and down in the same container. If you brought your ph down too much either add a small bit more nutrients or more water. if you messed up and brought it to down then start over and remember what you did wrong to not do it again. Add small drops at a time cause that stuff is strong. I use it by drips. If my ph is acidic at 5 or by the color chart I Add ph up by drips like one or two then shake the container not too hard cause oxygen will cause it to go Up do when you're done softly shaking it let it sit for a bit then check the ph and add what is needed by small amounts as drops like I do it and I never go wrong cause of patience. but never add both to the same container. This is a very good product for the safety of your plants **Q: What is the chemichal composition of the pH up and pH down?** A: sorry, i can't help you with the chemical composition. I live on the West Coast near Washington and the water here is almost perfect at 5.5 or 6. You will need very little ( a few drops ) to drive the ph up or down. This product does work. Google " How to change your water's ph " and you will get lots of advice. If your ph is too high or low your plant nutrient food will sediment out and be impossible to be utilized by the plant. I suggest that you get proper hydroponic plant food. I no longer use this product but first step is to find out what your waters ph is.This will help. Good luck. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Its serves it purpose *by F***A on November 4, 2025* I think very effective when you need to manipulate the ph level of your water. Good products! ### ⭐⭐⭐⭐⭐ Review *by く***び on November 11, 2025* 素晴らしい。 ### ⭐⭐⭐ bottle labels are not colorfast *by J***E on May 21, 2022* Though the product works fine, if the bottle labels get wet the ink comes off and makes a mess. This is a significant problem since the pH color chart is on bottle, and your hands will surely get wet when testing pH. I had to wrap the bottles in clear packing tape. ## Frequently Bought Together - General Hydroponics pH Control Kit For A Balanced Nutrient Solution - 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 --- ## 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.co.uk/products/724945486-general-hydroponics-gh-ph-control-kit-5-pack-ph-control](https://www.desertcart.co.uk/products/724945486-general-hydroponics-gh-ph-control-kit-5-pack-ph-control) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*