C3 - 20lb Chlorine Tablets, 3 Inch Swimming Pool & Spa, Size: 20 Lbs, White GVU1_A8JBW29

These C3 8oz 3 inch Chlorine tablets are made from 99% Trichloro-S-Triazinetrione and 90% Available Chlorine. Made with the most concentrated form of dry chlorine. They are consistent in size and dissolve slowly, so you can reliably dose the pool once a week. These tablets contain cyanuric acid, a stabilizer that prevents ultraviolet light from removing the available chlorine from your pool. With these tablets, you can easily maintain the right chlorine balance and produce beautiful, clean sparkling water effortlessly. Simply add tabs to chlorine floater or chlorinator, 1 tablet treats 10,000 gallons of water.