Clorox Automatic Toilet Bowl Cleaner cleans and deodorizes your toilet with the power of Clorox bleach. The easy to use tablets contain concentrated Clorox bleach to kill 99.9% of household bacteria with every flush. Each tablet delivers long lasting clean for up to 3 months and repels tough stains like hard water, mineral and limescale. Drop a tablet in the rear right corner of your tank to sanitize, deodorize and clean your toilet. The tablets help keep your toilet bowl water crystal clear and smelling fresh and it helps extend the time between deep cleans. Ideal for use in restaurants, cafeterias, offices, hotels, daycares and other commercial facilities. Keep your toilet bowl clean and fresh from day to night with the power of Clorox Automatic Toilet Bowl Cleaner. Application: Bowl Cleaner; Applicable Material: Ceramics; Enamel; Fiberglass; Metal; Plastic; Vinyl; Chemical Compound: 1-bromo-3-chloro-5,5-dimethylhydantoin 51.0%; Dirt Types: Grime; Lime; Mineral Scale; Organic Matter; Rust; Soil; Stains.