C3 1" Stabilized Chlorine Tablets for Swimming Pools, 15 lbs

C3 1" Stabilized Chlorine Tablets for Swimming Pools, 15 lbs Use 16 ounces per 10,000 gallons of pool water per week 99% Trichloro-S-Triazinetrione with 90% Available Stabilized Chlorine Excellent for floating feeders, skimmers, and automatic chlorinators Contains cyanuric acid, a stabilizer that prevents ultraviolet light from removing available chlorine from your pool Safe to use on swimming pools.