Cartridges A concentrated, foaming, mild acid bathroom cleaner that quickly dissolves lime, soap films, grease, and mineral deposits. Cleans a variety of surfaces in the restroom including tile, toilet bowls, urinals, sinks, and more. Each 10-ml. cartridge yields one quart of spray cleaning product. Registered with the NSF Non Foods Compounds Program: A4, C1, C2. NSF Registration #: 146449.