Liquid heat drain opener uses advanced chemistry designed to clear even the toughest of clogs. Its powerful gel formula is specially formulated to cling to obstructions and quickly open tough clogs. It is ideal for use in kitchen sinks where food buildup is slowing water flow and tubs or showers where hair is impeding drain flow. The formula is safe for pipes and septic systems.Guaranteed to work or it’s freePenetrating gel formula is specially formulated to cling on to the obstruction