Rx Clear No Grab Tab 3" Chlorine Tabs with Water Soluble Wrapper for Swimming Pools, 22 lbs

Tabs stay in the wrapper and will dissolve in the water Slow-dissolving, with a balance of 90% available chlorine and 99% Trichlor to stop algae and bacteria growth Stabilized with cyanuric acid, forming an iso-cyanurite Each chlorinating tablet is pH 2.7, weighs 0.5 oz. and is individually packaged Longer shelf-life and less of an odor than other types of chlorine that utilize calcium hypochlorite UV protected against harmful sun rays, preventing chlorine burn-off 1 tablet per 5,000 gallons of pool water, per week Safe to use on swimming pools.