Kaboom 32 oz. Shower, Tub & Tile Cleaner tackles tough household stains like rust, mineral deposits, and hard water marks with its powerful, yet gentle formula. Its refreshing citrus scent adds a pleasant touch to your cleaning routine. This high-performance cleaner leaves no residue after rinsing, making your cleaning experience effortless. Its new foaming sprayer reduces fumes and simplifies vertical surface cleaning. Unlike other cleaners, Kaboom is free from harmful acids like phosphoric, sulfamic, and oxalic, as well as ammonia.