Engineered for maximum effectiveness, Zep liquid Heat Max clog remover gel blasts through hair, grease and buildup - the most common causes of household clogs. The professional-strength formula cuts through standing water and clings to debris for excellent penetration and clog-busting power. Safe for use in all types of pipes and septic systems, it's ideal for bathroom sinks, tubs, showers and kitchen drains. Whether you're dealing with a slow drain or a complete backup, trust Liquid Heat Max to restore flow quickly and safely - without damaging plumbing or calling a professional.