1.A natural acid, toilet, urinal, and shower room cleaner. 2.Quickly removes soap scum, water spots and light rust -Contains 8% citric acid, the same organic acid found in lemons and limes, for efficient cleaning action that quickly removes soap scum, water spots and light rust from toilet bowls, urinals and shower room walls and Floors. - Ready-to-use or dilute 12 oz./gal.