SANITIZER, CLARIFIER, STAIN INHIBITOR, DE-SCALER, AND ALGAECIDE ALL IN ONE TABLET! Get the one tab that does the work of 5 different frequently-used chemicals. Make pool maintenance easy and reduce the amount of pool chemicals needed to keep your swimming pool crystal clear. One individually-wrapped sanitizer tab also contains a clarifier, a stain inhibitor, an algae preventer and a descaler. Slow-dissolving and UV-protected for extended chlorine life. Can be used with floating chlorinators or automatic feeders. Contains 84.65% available pool chlorine, 94% active ingredient (trichlor). Get these great benefits in 1 tab: • SANITIZER: Chlorine to keep your pool bacteria-free • CLARIFIER: Clear up cloudy water • STAIN INHIBITOR: Removes minerals that can cause stains • DE-SCALER: Remove deposits and film from pool surface • ALGAECIDE: Provides a regular, slow-release dosage best for prevention of algae growth.