Liquid-Plumr® Heavy Duty Clog Remover provides a powerful, fast-acting solution for both fully-clogged and slow-running drains. This ready-to-use formula works on a variety of clogs caused by hair, food soils, grease and other materials that slow drains. Liquid-Plumr® Heavy Duty Clog Remover is safe for disposals, septic tanks and plastic pipes. From Clorox Commercial Solutions®, this drain cleaner is ideal for use in offices, schools, day care centers, restaurants, hotels and other commercial facilities.