ZEP 32 fl.oz. Grout Cleaner and Brightener

ZEP 32 fl.oz. Grout Cleaner and Brightener. For use on white or colored grout lines on tile floors, not for use on marble, terrazzo, travertine, natural stone, chrome, stainless steel, brass or Corian. Deep cleans grout lines and lifts stains. Product is not to be used to remove mod, mildew, calcium or limescale and rust.