Liquid Drain Opener •Commercial strength, non-acid, and non-flammable drain opener. •Liquid Drain’s penetrating surfactant foaming action lifts and pushes contaminants off to rapidly clear drain, sewer, or waste line. •May be used on cast iron, steel, copper, brass, lead, and plastic pipe. •Will not harm septic tanks, cesspools, drainage fields and leaching systems when used according to directions. •Non-acid •Non-Flammable •High Foaming •Odor-free •Child-proof caps to prevent accidental openings •Works in 15-30 minutes.