Zep Acidic Toilet Bowl Cleaner, 32 Oz

A thickened 10% hydrochloric acid formula quickly removes rust, soils, stains, mineral deposits and uretic salts. Squirt top makes it easy to apply under the rim. Clings to vertical surfaces. Will not harm plumbing or septic systems. Deodorizes as it cleans leaving fresh fragrance. Application: Toilet Bowls; Urinals; Applicable Material: Toilets; Urinals; Chemical Compound: Hydrochloric Acid; Hydrogen Chloride; Dirt Types: Hard Water Stains; Residue; Rust Stains.