Clorox Automatic Toilet Bowl Cleaner Even when your toilet looks clean it can be full of germs you can t see. Be safe – clean and deodorize with every flush. Cleaner/disinfectant helps prevent mineral and hard water stains while it kills 99.9% of all common bathroom germs. 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. Clorox Professional Clorox Automatic Toilet Bowl Cleaner 3.5-oz. Tablets 2 Tablets per Pack 6 Packs per Carton