ZEP 32 oz. Shower Tub and Tile cleaner is an acid-based, multi-purpose bathroom cleaner designed to breakdown soap scum, dirt and hard water stains. This shower cleaner when used on ceramic tile, sink basins and chrome leaves surfaces looking like new. Just spray it on and let the acidic foam action do the work. The cleaning liquid is safe for use on acrylic, cultured marble, fiberglass and most ceramic tiles and porcelain. Tile and grout cleaner leaves a fresh morning fragrance.