Clorox Pool & Spa granular pH adjuster STABILIZER, Step 1 Balance, helps stabilize pH levels in pools and improves swimmer comfort. Pool chemicals help keep pools squeaky clean and ready for use. Step 1 in a 3-step system designed for simple pool maintenance. - Prevents chlorine loss - Enables chlorine to last longer - Protects chlorine from sunlight degradation pH Adjuster, Granular, 4 lb., 5 to 7