This thickened, 9% hydrochloric Betco acid toilet bowl cleaner contains detergents and compounds that quickly remove rust, scale, and hard water mineral deposits. Because it clings to vertical surfaces, it provides more contact time for better cleaning action than thin formulations. Application: Toilets; Urinals; Applicable Material: Hard Surfaces; Toilets; Urinals; Chemical Compound: Hydrochloric Acid; Dirt Types: Mineral Deposits; Rust; Scale; Soils.