Rx Clear C3 3" Stabilized Chlorinating Tablets for Swimming Pool and Hot Tubs, 25 lbs

Rx Clear C3 3" Stabilized Chlorinating Tablets for Swimming Pool and Hot Tubs, 25 lbs Made of 99% Trichloro-S-Triazinetrione and 90% Chlorine. Contains cyanuric acid (CYA), a stabilizer that prevents UV light from removing existing chlorine Safe to use on swimming pools, spa, and hot tubs Eliminates contaminants keeping the water clean and crystal clear 1 tablet treats 10,000 gallons of water for up to a week