PacifiClear F024001012PC No-Chlorine Pool Chemical, 1 lb Bag, Granular, Chloramine

No Chlor is an auxiliary, non-chlorine oxidant (shock treatment). This product oxidizes organic materials in pool water and allows swimming immediately after use. Treatment with No Chlor on a regular weekly basis improves the efficiency of sanitizing chemicals such as chlorine and bromine by oxidizing and eliminating contaminate waste and restores sparkle and clarity to pool and spa water.