This high performance cleaner is an ideal substitute for aggressive hydrochloric acid cleaners or when non-acid cleaners just won't get the job done. This phosphoric acid based formulation quickly cleans and brightens bowls, urinals, porcelain and tile, as well as brass, chrome, bronze, copper, fiberglass, stainless steel, and more. It can be used in toilets, baths, showers, pool and spa areas, and even kitchens on soiled coffee urns, steam tables, and drinking fountains.