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General Hydroponics

GH General Hydroponics pH Up and pH Down 1 Quart Combo Kit Water Adjuster Buffer

  • Based on 1,243 reviews
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Availability: In Stock.
Fulfilled by THSHydro
Arrives Saturday, Aug 22
Order within 11 hours and 25 minutes
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Brand: General Hydroponics


Item Form: Liquid


Product Benefits: Maintains proper pH balance, controls algae, and kills bacteria


UPC:


Number of Items: 1


Package Dimensions ‏ : ‎ 8.7 x 7.48 x 3.46 inches; 5.18 Pounds


Date First Available ‏ : ‎ April 13, 2019


Manufacturer ‏ : ‎ General Hydroponics


Best Sellers Rank: #165,846 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden) #52 in Hydroponic Nutrients & Additives


#52 in Hydroponic Nutrients & Additives:


Customer Reviews: 4.8 4.8 out of 5 stars (1,244)


Brand Name: General Hydroponics


UPC: 309277145293


Number of Items: 1


Unit Count: 64.0 Fluid Ounces


Manufacturer: General Hydroponics


Item Form: Liquid


Product Benefits: Maintains proper pH balance, controls algae, and kills bacteria


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If you place your order now, the estimated arrival date for this product is: Saturday, Aug 22

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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Similar Products

Top Amazon Reviews

    • pH Up, pH Down… and My Plants Think I’m a Chemist Now
The General Hydroponics pH Up & pH Down Combo Kit is the closest I’ve ever come to feeling like I’m running a tiny science lab in my kitchen. A couple drops of this, a couple drops of that, and suddenly the water is perfectly balanced like I actually know what I’m doing. The bottles are easy to use, the adjustments are quick, and the results are consistent. One moment your water is acting wild, the next it’s calmly sitting at the perfect pH like it finally decided to behave. My plants definitely appreciate it — they perk up like they just got a motivational speech. And the combo kit? Brilliant. It’s like having both the angel and the devil on your shoulders, except instead of giving life advice, they’re just helping you keep your nutrient solution in the “don’t kill your plants” zone. What I Liked +Adjusts pH fast enough to make you feel like a hydroponic wizard +Easy‑to‑use bottles with predictable results +Perfect combo for keeping water in the sweet spot +Plants respond like you suddenly became a professional grower Things to Keep in Mind *You may start checking pH more often than your phone *Friends might assume you’re doing “real chemistry” now Overall A simple, effective pH control kit that makes hydroponics feel fun, easy, and just scientific enough to boost your ego. Perfect for keeping your plants happy and your water balanced. ... show more
Reviewed in the United States on February 11, 2026 by ProvokaPhoto
    • Ph up n down
Good product. Decent pricing.
Reviewed in the United States on December 21, 2025 by Shelby D
    • Good choice
Very simple PH balance is critical and this is a tried true formula and will do much for the success of your harvest it is easy to use and a good value and very important to the quality of your plants
Reviewed in the United States on April 24, 2025 by William Tell
    • Amazing product
Works really well for all your indoor growing needs.easy too use when treating your water.there really big bottles that'll last a while and they came early.
Reviewed in the United States on September 24, 2024 by Dustin Lindsey
    • Good value
This combo is all you need to regulate PH, and it does it fast. It only takes a few drops to bring the PH up or down. So add a little, test PH, add a little, test PH until you get the desired PH. For how little I use of this to get the perfect PH, these bottles should last a long time. Very happy with this purchase. ... show more
Reviewed in the United States on September 25, 2024 by Drew K
    • Great product!
I always use General Hydroponics products. Always great quality! This was a great value!
Reviewed in the United States on January 23, 2025 by RB
    • Hydro
Works great
Reviewed in the United States on March 4, 2025 by Damian Anderson
    • My go to
My trusted go to brand for when I need pH up and pH down. These always do the trick!
Reviewed in the United States on February 26, 2025 by jason karr

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