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General Hydroponics

General Hydroponics pH Control Kit for a Balanced Nutrient Solution

    • Based on 26,923 reviews
Condition: New
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$18.19 Why this price?
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, May 2
Order within 21 hours and 4 minutes
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Size: Kit


Features

  • General Hydroponics pH Control Kit contains everything you need to measures 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: #672 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #1 in Hydroponic Nutrients & Additives


#1 in Hydroponic Nutrients & Additives:


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 2

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • 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
    • Easy to use and understand
Size: Kit
Affordable and good
Reviewed in the United States on February 12, 2024 by Dennis
    • Works great
Size: Kit
I needed a accurate way to check pH and don't have the funds for a expensive pH pen so I gave this a try. It's not accurate to 0.1 but I'm shooting for 6.0-6.5 and this lets me know I'm there. The pH down solution is strong so start with the tiniest amount and check again. At three drops per test this bottle should last me a long time and for like $4 you can't beat it and I'll continue using this until I can get a pen. ... show more
Reviewed in the United States on January 19, 2024 by zach smallwood
    • Great start
Size: Kit
Perfect for getting started in hydroponics or general pH balancing. Great that they offer different sizes to fit different needs, I'll definitely be sizing up in the future. I wish it came with more testing liquid. Easy to read and very effective.
Reviewed in the United States on December 7, 2023 by ZackB
    • General Hydroponics pH Control Kit
Size: Kit
This kit comes with a sample water collection siphon, see threw bottle, PH+, PH- and PH Chart. Works as expected. Would recommend. What i didn't like is the company prints the color chart and instructions over top each other. I would rather see the color chart on one side, (for us color-blind people) and the instructions on the other side. Have no issues with the chemicals just the color chart. ... show more
Reviewed in the United States on January 22, 2024 by William J Jr.
    • Very good product
Size: Kit
It does what it says and it doesn’t take much
Reviewed in the United States on February 25, 2024 by Daniel Stokes
    • Easy to use; Inexpensive
Size: Kit
I use these to adjust the pH up or down on my hydroponic garden. For me about 2-3 ml of solution does the trick to get the pH in the 5.8 range. I have a high end pH meter so do not use the testing portion which relies on color matching.
Reviewed in the United States on March 6, 2024 by RM
    • Works great
Size: Kit
Just be careful with this stuff.
Reviewed in the United States on February 20, 2024 by Steve Shackelford

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