

🌿 Elevate your grow game—because your plants deserve precision.
The VIVOSUN pH Up & pH Down Kit offers a premium, highly concentrated liquid formula designed to precisely balance nutrient solution pH between 5.5 and 6.5. Made in the USA with commercial-grade potassium hydroxide and phosphoric acid, this kit supports all plants and growing systems—hydroponics, soil, coco coir, and more—ensuring optimal nutrient uptake, vigorous root development, and enhanced crop yields with easy, repeatable application.













| ASIN | B0CT88YRZP |
| Best Sellers Rank | #19,151 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #646 in Garden Fertilizers |
| Brand | VIVOSUN |
| Brand Name | VIVOSUN |
| Coverage | 56 square feet |
| Customer Reviews | 4.7 out of 5 stars 97 Reviews |
| Included Components | potassium hydroxide |
| Item Form | Liquid |
| Liquid Volume | 32 Fluid Ounces |
| Manufacturer | VIVOSUN |
| Mixing Ratio | 1:100 |
| Model Number | VSN-PHUDK32 |
| Number of Items | 2 |
| Target Species | all plants |
| Unit Count | 1.0 Count |
B**N
Ph up% down
Works great
S**S
Recommend
I use this to keep my soil at a 6.5ph and these products have helped grow lots of produce.
J**H
PH is key
my tap water PH level is 7.1 and it says my plants like it between 6.2 and 6.8 so I've been using the PH down to get around 6.5
M**N
Will buy again.
Very good product. Worth it to have on hand. NOTICE: A little goes a long LONG way.
D**.
Ph up and Down
I use the Vivosun Ph up and down to maintain the Ph in my hydroponic system. The shipping was quick and the product works pretty much instantly! Good stuff!
R**.
Works!
Works as intended
S**N
One and done for hydroponic.
I run this in my outdoor hydroponic garden and I'm new to doing this. The only thing I add other than this is pH adjustment and my plants are thriving. Once a week 10 ml per gallon of each.
C**S
Works good
Been using it for a while now and can say I am happy with what I see and I think the plants agree
Trustpilot
1 month ago
1 month ago