6 in 1 shock with algae-killing crystals.
Kills and Controls Green, Black and Mustard Algae.
Clears cloudy water and removes swimmer contaminants*.
Reduces chlorine odor and eye irritation.
Improves filter performance.
Won’t impact pH.
Treat and swim in 15 minutes**.
(*) Such as body oils, sweat, lotions and urine.
(**) Test Free Chlorine before swimming to ensure it does not exceed 4ppm.