Blue Monster® non-acid drain banger devours hair, grease, soap and oils that slow and plug drain lines in less than 60 s. This professional strength drain opener is powerful and fast acting. Drain banger's unique formula is embedded in blue flakes that work more effectively than liquid drain openers or beads. It is highly concentrated and when used as directed, will not cause rock like masses, commonly referred to as "caustic clogs" that other forms of this type of product can cause. Contains no acid. Blue Monster® drain banger is a hot water activated drain cleaner designed to be used by professional contractors only. It is odorless and will not harm plumbing fixtures, porcelain or septic systems. Blue Monster® drain banger can also be used for preventative maintenance eliminating hair, grease, soap and oil build-up that will create future problems.