s PST-C12 Pool Stain Treat, 2-Pound (2-Pack)

Pool Stain Treat is a sequestrant and a chelating agent. It has the power to eliminate stains from all types of swimming pools. Ideal for initial stain prevention. Compatible with Baquacil and Soft Swim. Effective on iron and organic stains. Safe for every pool surface. Helps prevent stains from returning. 2 lbs. treats up to 20,000 gallons