Unclog drains and fight odors with the 2-in-1 action of Liquid-Plumr Foaming Clog Fighter. Two liquids activate on contact creating a powerful foam that you can see cleaning your drain. The smart formula penetrates in and around clogs to destroy hair soap scum and grease. Plus it fights odors as it cleans. Perfect for clogs in your bathtub shower bathroom sink kitchen sink and garbage disposal the deep cleaning foam stays in pipes 4x longer making it a faster better way to clear slow drains. This clog remover and drain cleaner is safe for all septic systems and pipes including PVC plastic copper and old pipes. Do not use with a plunger in toilets or with ammonia toilet bowl cleaners or non-Liquid-Plumr clog removers (to avoid hazardous gas). Liquid-Plumr contains biodegradable surfactants and no phosphorous. Excessive heat or cold may cause some ingredients in Liquid-Plumr to form clumps but this should not affect its performance.