StoneTech KA12-32 Klenz All Stone Tile and Grout Cleaner, 1-Quart Highly concentrated alkaline cleaner and degreaser for natural stone, ceramic tile and grout Powers through stubborn grease and soils Provides coverage for up to 4,000 square feet Non-abrasive cleaner that will not etch Liquid has a fresh scent, and safe for all natural stone