CERAMIC TILE AND GROUT A specially formulated acid cleaner for use on most kitchen & bathroom fixtures and surfaces including stainless steel, chrome, plastic, tile floors and walls, grout etc. It will remove tough stains including algae, soap scum, rust, hard water stains, oil, grease and oxidation. Use straight on most surfaces or 4-8 oz/gal to clean tile floors. Ships Limited Quanity under 2 gallons. Hazmat fee for 3 or more in one box.