Sulfuric acid-based drain opener. Designed to quickly dissolve all organic obstructions such as cloth, paper, rags, grease, hair, paper, sanitary napkins, styrofoam, sludge, soap, and coffee grounds. Use in floor drains, sink drains, tub drains, shower drains, and other drains prone to clogging. Moflo has an instrument for approval for use in food processing establishments for use as a drain cleaner.