A fast acting 9% hydrochloric acid toilet bowl and urinal cleaner removes stains, hard water deposits, and organic matter with ease. Thickened formula clings to surfaces for prolonged contact time. Keeps bowls and urinals bright, clean and 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. Green : HDPE plastic bottles and out box are 100% recyclable.