A fast acting 9% hydrochloric acid toilet bowl & urinal cleaner removes stains, hard water deposits, & organic matter with ease. Thickened formula clings to surfaces for prolonged contact time. Keeps bowls & urinals bright, clean & fresh smelling. Application: Bowl Cleaner; Applicable Material: Ceramics; Enamel; Metal; Chemical Compound: Hydrochloric Acid; Dirt Types: Bacteria; Grime; Mildew; Mineral Scale; Mold; Organic Matter; Rust; Soil; Stains.