HTH Super Shock 52026 Pool Chemical, 12 lb Bag, Granular, Chlorine, White [SKU: ORG9114505]

4-in-1 formula increases the chlorine level and won't over-stabilize your swimming pool, Kills bacteria and algae in swimming pools, Won't fade liners, Restores crystal clarity within 24 hr, More value - each 1 lb bag treats 13,500 gal, Test pool water and shock weekly to keep chlorine levels between 1 and 4 ppm, For all swimming pool types including vinyl-lined pools, gunite pools and salt water systems. [QTY/UOM: 12 / 1PK]