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General Hydroponics

General Hydroponics pH Up Liquid Premium Buffering For pH Stability, 1-Gallon

    • Based on 8,882 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, May 26
Order within 14 hours and 28 minutes
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Style: pH Up


Size: 1 gal


Features

  • Base solution is formulated using Potassium Hydroxide and Potassium Carbonate
  • Add when your nutrient pH is too low in order to raise the pH to the proper level
  • Promotes pH stability
  • Add a little at a time if your nutrient pH is too low in order to raise the pH to the proper level
  • Recommended pH for most plants is 5.5 to 6.5 pH

Description

This Base solution is formulated using Potassium Hydroxide and Potassium Carbonate. Add a little at a time when your nutrient pH is too low in order to raise the pH to the proper level


Product Dimensions: 5.9 x 5.9 x 11.7 inches


Item Weight: 9.66 pounds


Manufacturer: General Hydroponics


Country of Origin: China


Item model number: HGC722095


Is Discontinued By Manufacturer: No


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, May 26

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

    • 4 drops more accurate
Style: pH Test kit Size: Kit
I think this product is extremely accurate. I did in fact notice a slight difference between adding 3 or 5 drops to the vile as directed in the instructions. 3 Drops gave me a good reading but 5 drops definitely gave me a more intense reading in which ever direction the PH was. If it was low with 3 drops it was a bit lower with 5. The same goes if I had a higher PH level with 3 drops but with 5 it went up a complete point! Either way I like the product and I personally would average it out as directed and go to 4 drops. I think that gives me my best reading. ... show more
Reviewed in the United States on May 2, 2019 by Vettel
    • It’s extremely weak and requires a lot to change the pH.
Style: pH Up Size: 1 gal
It’s very very weak. Ive has this Product before and it was never this weak. It’s like it’s diluted with water.
Reviewed in the United States on June 15, 2019 by Melissa Colatosti
    • Clueless?
Style: pH Test kit Size: Kit
Review Image by Four! Four!
Two weeks flowering I've used General Hydroponics HGC722145 pH Test Indicator every time I grow. It's this or another brand-otherwise you're clueless taking care of your plants. The instructions say to use 3-5 drops per test: I'm using 4-5 drops for these two plants. Previously I used three drops and am not seeing a difference: except the fluid is going down much quicker than in the past. I think it's time to go back to three drops. Using the color chart to see what your Ph level gives you a good idea, which in time guides you through the testing. ... show more
Reviewed in the United States on October 19, 2020 by Four! Four!
    • PH is not 7.0 (it’s 7.2)
Style: Calibration Solution Size: 1 quart
PH is not 7.0 I measured this PH calibration solution against 3 other well know PH calibration solutions. The other solutions were all exactly the same at 7.0, this one came in at 7.2 I will be promptly returning this.
Reviewed in the United States on February 12, 2021 by TonyTheTiger17
    • Wildly inaccurate and possibly fake, faulty, or expired.
Style: pH Test kit Size: Kit
Not sure if I recieved a faulty batch, or this was a counterfeit, but this solution just absolutely does not work. At all. Says everything is 7.0 or 6.0. Insanely frustrating. I've used this stuff for years and moved on to the electric devices but got sick of messing with calibrating them. This stuff is not what it used to be. It's like it cant read 6.5 and that's essentially a useless tester without that. I just threw it away and went back to Biopharm indicator solution. I'm certain it isn't user error either. I've done this probably well over 5,000x in my life. Maybe more. I can't recommend this stuff. Use Biopharm. ... show more
Reviewed in the United States on March 4, 2020 by Mike C.
    • Product on point.
Style: pH Up Size: 1 quart
Review Image by John Wade John Wade
The ones complaining about this being weak want a pH of 14 lol. If you read the ingredients before you buy, potassium carbonate has a pH of around 11.5. This product is testing around 11.2. If you aren't happy with that then go buy some raw potassium carbonate. You don't need a pH of 14 for this product's use case, in fact you'll probably shock your plants into a quick death. This stuff stores for a while too so I can't imagine anyone getting a bad bottle. ... show more
Reviewed in the United States on February 4, 2022 by John Wade John Wade
    • THIS IS FOR CALIBRATING PH METERS!!! NOT FOR PH'ING YOUR NUTRIENT WATER!!
Style: Calibration Solution Size: 1 quart
I felt i needed to clarify what this product is used for, because of all the reviews stating they used this to ph their water or nutrient water. GH has a product called "ph up" and "ph down," and that's literally what they're for. This liquid product which is green in color is specifically for CALIBRATING YOUR DIGITAL PH METER!!! And also is suitable for using as electrode storage solution. You put this in your ph cap that your ph meter goes into and it helps preserve it and makes it so your meter doesn't take a thousand years finally deciding what the ph is. Do we all understand what this is for now??? Good!!! : ) ... show more
Reviewed in the United States on September 16, 2021 by SALAMINIZER_1
    • Works as Expected - Good Value
Style: Calibration Solution Size: 1 quart
In my opinion the General Hydroponics brand is rock solid. I have used a lot of their nutrients and maintenance products and always find them to be the highest quality. This product is no exception. If you care about PH, and you should, regular testing and re-calibration of your meter is essential. For me the 7.0 is perfect since I operate in the 5.5-6.5 PH range. I used to use the 4.0 as well to verify the calibration settings but over time found the 7.0 to be sufficient. I was checking my meter once a month or so and it was not often enough so I decided to get the larger bottle so I can test my meter more often. I use the small paper Dixie cups you use in the bathroom for kids and toss them afterwards as it's best to not reuse the solution. This bottle should last a long time. Definitely recommend this for checking/calibrating any PH meter that has this feature. ... show more
Reviewed in the United States on November 25, 2019 by E. A. Jacques

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