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General Hydroponics

General Hydroponics pH Control Kit For A Balanced Nutrient Solution

    • Based on 27,683 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Feb 25
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Size: Kit


Features

  • General Hydroponics pH Control Kit contains everything you need to measure pH levels of your hydroponic grow reservoirs
  • RELIABLE RESULTS: The streamlined testing system delivers fast, accurate, and easy-to read results every time
  • ALL-IN-ONE KIT: Includes 8 oz. General Hydroponics pH Up Liquid, 8 oz. General Hydroponics pH Down Liquid, 1 oz. Test Indicator, test tube, an eyedropper, and a pH level chart
  • THE PREFERRED WAY OF TESTING pH: Seasoned growers prefer our pH Test Kit to expensive electronic meters because of its reliability and ease-of- use
  • EASY TO USE: To use, simply fill a test tube halfway with nutrients, add a few drops of pH test indicator, and observe the coloration of the liquid; recommended pH for most plants is 5.5 to 6.5

Description

General Hydroponics® pH Control Kit accurately and efficiently measures the pH levels of your nutrient solutions, grow reservoirs, and the rest of your hydroponic system. pH control is essential for vigorous plant growth. Nutrient solution pH that is too high (basic), or too low (acidic), cannot be properly absorbed by plant roots. Incorrect nutrient solution pH can cause slow growth, sickly plants, and low yields. But General Hydroponics® pH Control Kit is here to help. The kit contains everything you need to test pH levels and make adjustments so you can easily monitor and manage pH levels throughout your hydroponic grow. Kit includes: 8 oz. pH Up, 8 oz. pH Down, 1 oz. test indicator, a test tube, eyedropper, and pH Level Chart. To maximize plant growth, the pH level of your nutrients should be slightly acidic. Experienced growers consider the ideal pH for most crops to fall between 5. 5 and 6. 5.

Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 1 x 1 x 1 inches; 1.5 Pounds


Item model number ‏ : ‎ HGC722080


Department ‏ : ‎ Unisex-Adult


Date First Available ‏ : ‎ April 4, 2004


Manufacturer ‏ : ‎ Hawthorne Hydroponics, LLC


Country of Origin ‏ : ‎ USA


Best Sellers Rank: #547 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #1 in Hydroponic pH Control


#1 in Hydroponic pH Control:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Feb 25

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews

    • Essential for Hydroponics
Size: Kit
Review Image by RUBEN RUBEN
I’ve been using General Hydroponics pH Up and pH Down for maintaining the pH balance in my hydroponic nutrient reservoir, and I’m impressed with how reliable these products are. First off, the formulas are highly effective. A little goes a long way, which is great for precision adjustments without overcorrecting. Whether I need to raise or lower my pH, these solutions act quickly, giving me full control over the nutrient solution. One thing I really appreciate is how easy they are to use. Both products are well-labeled with clear instructions, making them beginner-friendly while still being ideal for experienced growers. They don’t cloud the water or interfere with nutrients, which is a big plus when you’re trying to maintain a stable reservoir environment. I’ve noticed that using these consistently has improved plant health. Maintaining the correct pH ensures that the plants absorb nutrients efficiently, and I’ve seen stronger growth and healthier root systems since adding GH pH Up and Down to my routine. If you’re serious about hydroponics, these are must-have tools. The bottles are durable and come in various sizes to suit any setup. Overall, I highly recommend General Hydroponics pH Up and pH Down for anyone managing a hydroponic system. They’re reliable, efficient, and worth every penny. ... show more
Reviewed in the United States on January 25, 2025 by RUBEN RUBEN
    • Excellent Products
Size: Kit
Works great. Easy to use. Highly recommend for Ph adjusting.
Reviewed in the United States on January 18, 2025 by Dave M.
    • Effective, reliable and reasonably priced....essential for a hydro system.
Size: Kit
This product does exactly what it says it does! efficiently too! this product is 3 bottles pH-up, pH-down and a pH test solution. (also comes with a vial to conduct the pH testing in AND a pipette which I thought was great, I ended up getting on before I opened the package assuming they did not provide one, but General Hydroponics really gives you everything you need to open the package and do testing RIGHT AWAY!) I tested this on my hydroponic system with a calibrated pH meter hehe.....I wanted to know how accurate the test solution is. The test solution runs on a color scale, acidic being pink basic being dark green. The scale is located ON THE BOTTLE! so you never will lose it. As far as my basic testing concluded, the test solution is accurate; the color changes are visibly recognizable and comparable to the provided scale. 6.0 is yellow, 7.0 is green, and both of these matched my pH meter (in approximation, don't expect to perfectly get a 6.3 or something, this test kit is intended for keeping pH in a safe range, you could play with it and get exactly what pH you want with the assistance of a pH meter but I am judging this based on if a user DID NOT have access to a pH meter going on the test solution only.) The acid solution is very effective, which is nice, you don't want to use a lot of product to achieve results and end up being in need of more solution spending more $$$. I suggest using this 1-3 drop at a time, waiting 20 mins or so based on water flow and size of your container, and doing another test. Don't over do it, always undershoot what you are aiming for; you will save product and also prevent too acid/basic solution......just be patient, eventually you will understand the power of the acid/base solutions and wont even have to second guess if you put too much in or not. All in all, this is a must for a hobby hydroponic gardener or even a professional. Having a pH meter is nice, but some times the calibration may be off and having another testing method as provided in this kit is a good safety. I enjoy testing my solutions BOTH with the meter and the test solution because I know with out a doubt if my solution is within the correct pH range. This will last probably a year or even more depending on how big your system is. Just use sparingly and maybe play with the testing solution with known known acid/base solutions so you can take not of what the ACTUAL color of the liquid will look like in correspondence with the pH. Maybe put some vinegar in the vial, drop some test solution and take note. you will see a bright pink color. add some of the base solution and you will see the color change in the vial....do this before you mess with your actual nutrient solution just to get a feel for the colors! 5 stars for: price, reliability, longevity of the product use and ease of use. General Hydro is kind of the "big boss" hydro company and they really know what they are doing. Every product thus far I have purchased is good. ... show more
Reviewed in the United States on January 29, 2016 by Danni Boi
    • Quality product but needs more sizes
Size: Kit
This product is great, it does the job well and comes with everything you need. We personally got an Apera ph tester as well and just use the up and down adjustment fluids. Both work well and did not leak during shipment. However I think more sizes and price points need to be offered for these products. You use very very little of this product, so this will last me a long time. I would have rather bought a smaller set of bottles and saved some money. ... show more
Reviewed in the United States on August 20, 2024 by sky
    • Maintain pH Balance with General Hydroponics pH Control Kit! 🌿
Size: Kit
Let's explore the General Hydroponics HGC722080 pH Control Kit, your essential tool for achieving a balanced nutrient solution in hydroponic gardening! 🌱 Perfect for hydroponic systems and soil-based gardening alike, this kit includes pH Up and pH Down solutions, along with a pH test indicator, to help you adjust and maintain the optimal pH level for your plants. What sets this pH control kit apart is its reliability and ease of use. Whether you're a beginner or experienced gardener, achieving the correct pH is crucial for nutrient absorption and overall plant health. This kit ensures precise control over your nutrient solution's acidity or alkalinity, promoting robust growth and maximum yield. Since using the General Hydroponics pH Control Kit, growers have experienced improved nutrient uptake and healthier plants, leading to better overall garden performance. If you're serious about optimizing your hydroponic or soil-based gardening efforts, the General Hydroponics pH Control Kit is a must-have. It's your partner in maintaining pH balance for thriving, vibrant plants from seedling to harvest! 🌟 ... show more
Reviewed in the United States on July 10, 2024 by Alien Nomad
    • Works as it should....
Size: Kit
General Hydroponics offers amazing products that deliver results. You want to lower your PH? Then this is the product for you.
Reviewed in the United States on December 22, 2024 by TonyT
    • Economical and easy to use
Size: Kit
Happy with purchase, easy to use and instructions are clearly stated. Bottles seal well and don’t leak.
Reviewed in the United States on December 6, 2024 by Michael J. Maney
    • Works perfect
Size: Kit
Works perfect
Reviewed in the United States on January 23, 2025 by mark l.

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