Zep Liquid Heat Drain Opener Gel is an industrial-strength drain cleaner designed to dissolve tough clogs caused by hair, grease, soap scum, and organic buildup. The thick, penetrating gel formula works through standing water and clings to blockages to break them down in as little as 5 minutes. Safe for all pipes and septic systems, it helps restore fast water flow in kitchen sinks, bathroom drains, tubs, and showers. Backed by a guaranteed-to-work promise, it’s a reliable solution for residential and commercial drain maintenance.