Repels stains with every flush. - Isolates cleanser from the tank water so tank parts aren’t damaged by the detergents or bleach used by other in-tank cleaners. - Cleanser-treated water is injected only to the bowl where it’s needed, so cleanser application is efficient. - No residue or chemicals in the tank to damage parts or hinder operation. - Surfactant-based cleaning agent reduces spread of viruses and bacteria. - Minimizes minerals to fight hard water build-up. - Easily installed in less than five minutes; fits most two-piece toilets.