Use Pro pH Up to raise the pH value of your irrigation water or nutrient solution. Unlike most pH up products, Pro Up will NOT contribute potassium. When you’re growing professionally, only Pro pH adjusters will do. At nearly 3x the concentration of our retail adjusters, Pro pH Down and Up 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. Get Pro pH Up and pH Down in 2.5 gallon, 6 gallon and 55 gallon bottles.