Simple Green Professional Grade Shower, Tub and Tile Cleaner is a dual-purpose cleaner that provides heavy-duty descaling and effective daily cleaning of bathroom and kitchen surfaces. The professional grade formula removes built-up lime scale, hard water scale and soap scum without stripping protective finishes or causing discoloration. Safely clean acrylics, fiberglass, metals, plastics, PVC, porcelain, rubbers, tile and more. Effectively remove build-up and restore shine to stainless steel, copper and nickel without damage or harmful chemicals.