$20.99
Specifically formulated for spas & hot tubs Concentrated chlorine effectively sanitizes hot water May also be used as a shock treatment
One-step shock and oxidizer Combines the power of MPS and chlorine Compatible with bromine and chlorine sanitizers
Concentrated formula prevents iron & other metal build-up Only added at start-up and lasts from refill to refill One bottle will treat up to 500 gallons
Lowers pH and total alkalinity of spa water Helps prevent scaling, cloudiness, and discolored water Increases the effectiveness of the sanitizer