pH Adjusters happyhydro | GH pH Down Liquid

General Hydroponics pH Down solves the long-standing dilemma of rising pH levels in your indoor hydroponics environment. This is a scientifically proven acidic formulation that helps regulate pH to keep your system's pH levels optimized for plant health. 

Made with food-grade phosphoric acid that promotes hydroponic pH stability reliably and consistently from week to week and crop to crop.