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🌿 Master your garden’s pH balance like a pro—because thriving plants don’t wait!
General Hydroponics HGC722120 is a premium liquid buffering solution designed to precisely lower and stabilize nutrient pH using food-grade phosphoric acid. Ideal for hydroponic and soil applications, it ensures optimal pH levels (5.5-6.5) to enhance nutrient uptake and promote vigorous plant growth. Trusted by over 11,000 users with a 4.8-star rating, this quart-sized formula offers reliable, easy-to-use pH control for serious growers.


| ASIN | B00CJID1I4 |
| Best Sellers Rank | #1,153 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #1 in Hydroponic pH Control |
| Brand | General Hydroponics |
| Brand Name | General Hydroponics |
| Customer Reviews | 4.8 out of 5 stars 11,006 Reviews |
| Global Trade Identification Number | 00793094015325 |
| Included Components | 1 |
| Item Form | Liquid |
| Item Type Name | Premium Buffering For pH Stability |
| Item Weight | 2.6 pounds |
| Manufacturer | Hawthorne Hydroponics, LLC |
| Manufacturer Part Number | HGC722120 |
| Model Number | HGC722120 |
| Number of Items | 1 |
| Number of Packs | 1 |
| Package Size Name | Quart |
| Product Benefits | Lowers pH |
| UPC | 793094015325 |
| Unit Count | 32 Fluid Ounces |
A**R
Excellent Product would buy again.
I have a simple hydroponic tower with a 5 gallon water capacity and this pH down works excellently. It doesn’t take much to lower the pH at all, the insurrections for adding are clear and the results speak for themselves.
K**T
Fantastic product for garden and growing needs at a great price.
Excellent quality, great price, reliable and highly recommended. We only purchase this product from this seller. Cannot find it locally. Please Support small business.
R**R
General Hydroponics pH Down Liquid Premium Buffering For pH Stability, 1-Gallon
Works very well, reduces the PH in my beer with just pouring it into the water.
M**E
Still a stable product.
The product has remained the same after decades. I can count on it.
A**R
Does what it is marketed to
It's pH down to use with hydroponics / growing so nothing crazy to write about. Use as needed whenever your water is above the ideal range. I bought mine in 2021 and have had some inconsistent results with it recently where a small amount brought the pH down more than it usually would. That's happened three times now so I took some time to shake it and hopefully that resolves the inconsistencies. If I can't figure that out then I'll replace it since I don't like not being able to estimate how much to use for a certain pH and volume of water. MSDS sheet from 2021 I found indicates its 10-17% phosphoric acid. Therefore I put value for money pretty low since you can buy food grade phosphoric acid at 85% for pretty affordable prices and dilute it yourself. If your churning through this stuff and want a more affordable option I would suggest you look into that.
V**N
Works great for the price
I use this every year for my garden and get amazing results. Ph levels matter a lot more than most people think.
S**N
Hydroponics must have!
So, you've taken the plunge and bought a pH monitor, thinking you're all set to embark on your hydroponic journey. But then it hits you—monitoring is only half the battle. Fear not, fellow green thumbs and budding botanists, for I have found the yin to your pH monitor's yang: General Hydroponics pH Down.This product is, in a nutshell, a gardener's best friend. It's like having a magic elixir at your fingertips, ready to correct any alkaline audacity your water dares to exhibit. With just a few drops, you can bring your solution from the precarious heights of pH imbalance down to the serene valleys of perfect acidity. And why is this important, you ask? Because your plants are picky eaters, and pH Down ensures they get the nutrients they crave in a form they can absorb.Now, let's talk about ease of use. General Hydroponics has somehow managed to bottle simplicity itself. A little goes a long way, and with the detailed instructions provided, you'll feel like a pH wizard in no time. But remember, with great power comes great responsibility. Always monitor your pH levels to avoid turning your hydroponic setup into an acidic wasteland.Durability isn't usually a word associated with liquid products, but in this case, it's about the lasting impact pH Down has on your system. Consistent use helps maintain an optimal environment for your plants, contributing to their health and vitality over time. This isn't just a quick fix; it's a long-term solution for sustainable growth. In essence, General Hydroponics pH Down is the silent guardian of your hydroponic system. It works flawlessly with your new pH monitor, ensuring that your plants thrive in an environment tailored to their needs. If you've invested in monitoring your system's pH, investing in pH Down is a no-brainer. It's like buying a shield to accompany your sword, preparing you fully for the battle against pH imbalance. I wouldn't dream of running my hydroponic system without it.
D**E
Been using it for years
This is all I use
D**N
Best Bang For Your Buck!
This product works just as good as the other, more EXPENSIVE… Phosphoric Acid containing PH lowering agents I’ve used. It is also the LOWEST PRICE, that I have found for other products, with the same ingredients! For those reasons, I have given this product 5 stars… for effectiveness and VERY good price!
く**び
良い
good
J**L
Works
Works
竹**亮
流石です。
少しで、めちゃくちゃ下がりますよ。気をつけて使用して下さい。
S**I
添加後に待ち時間が必要
Phの調整に最適ですが、結果が出るまで時間がかかります。 添加後、最低30分ぐらいしてからPhを測らないと正確ではありません。 添加してもあまり変わらないと思って、さらに添加すると30分後大変なことになります。 1ml量れるスポイトがオススメ。
Trustpilot
2 weeks ago
1 week ago