Thickened bathroom cleaner concentrate is a safe, mild, non-fuming acid cleaning product. Designed as a multi-purpose bathroom cleaner. Its areas of use include: porcelain, toilet bowls, urinals, bathtubs, shower stalls, metal fixtures, stainless steel, drinking fountains and more. Easily removes soap scum, hard water deposits, scale and all but the toughest rust stains. Used daily, it prevents the buildup of unsightly mineral deposits.