Simple Green Professional Grade Shower, Tub and Tile Cleaner provides both heavy-duty descaling and effective daily cleaning of bathroom and kitchen surfaces. Specially formulated to remove built-up lime scale, hard water stains, and soap scum without stripping protective finishes or causing discoloration. Can be used on acrylics, fiberglass, metals, plastics, PVC, porcelain, rubbers, tile, and more. Removes build-up and restores shine to stainless steel, copper and nickel without harsh chemicals.