Quickly removes rust stains, scale and residue from toilet bowls and urinals with professional results. Its clinging gel works harder on vertical surfaces, leaving a clean shine and a pleasant, fresh fragrance. It is also safe for septic tanks, drain lines, and water-treatment systems. Application: Toilet Bowls; Urinals; Chemical Compound: Amines; Tallow Alkyl; Ethoxylated, Dodecyldimethylamine Oxide; Dirt Types: Rust; Scale; Stains; Scent: Mint.