General Hydroponics Pro pH Down

Starting At: $98.78


General Hydroponics Pro pH Down is the ultimate pH adjuster solution for professional growers. Unlike other pH Down solutions which contain potassium that affects nutrient balances, Pro pH Down's non-mineral formulation does not add extra nutrients to your current nutrient recipes. Pro pH Down is designed for commercial facilities as it is up to 3x more concentrated than General Hydroponics' hobby/retail pH Down.  

More Info




General Hydroponics Pro pH Down

Use Pro pH Down to lower the pH value of your irrigation water or nutrient solution. Pro pH Down will NOT contribute phosphorus, nitrogen or sulfate like most pH Down products. When you’re growing professionally, only Pro pH adjusters will do. At nearly 3x the concentration of General Hydroponics’ retail adjusters, Pro pH Up and Down deliver more power per pint to make balancing nutrient ratios in hundreds of plants more efficient than ever. It’s possible thanks to a unique, non-mineral formulation designed specifically for commercial facilities, and sized for them too.


  • Does not contribute fertilizer so it will not interfere with nutrient balances.
  • Unique non-corrosive/non-caustic formula.
  • Concentrated formula.
  • Alternative to harsh mineral hydroxides.
  • HMIS score 0-0-0 (triple zero)

Directions for Use:

The volume needed to achieve your desired pH will vary depending on your source water and the products you use in it to make up your solution. Apply very small amounts to the solution you wish to increase the pH of and mix well to allow pH reading to stabilize before adding more. Repeat until your target value is reached. For recirculating systems, check the pH daily.

There are many factors that affect ideal pH like: crop, stage of growth, and total ion exchange capacity. Recommended pH for most plants is: 5.5-6.5

Contains: Hydrogenated Water


Product Category



Only logged in customers who have purchased this product may leave a review.

    Your Cart
    Your cart is emptyReturn to Shop