Canberra's detergent-thickened toilet bowl cleaner uses a 9.5% hydrochloric acid formula to clean, deodorize, and disinfect porcelain, ceramic, and vitreous china bowls and urinals. It removes hard water films and rust stains that plain cleaners leave behind. Packaged 32 oz. per bottle, 12 bottles per case. A Safety Data Sheet is available for this product; review it before use and handling.