Get 3x action with Liquid-Plumr® Pro-Strength Clog Destroyer. This formula clears the toughest clogs and destroys, protects and prevents clogs with regular monthly use. Featuring Pipeguard Technology™ to prevent pipes from being damaged as the clog dissolves, this Liquid-Plumr® gel dissolves hair, grease and more and is safe for all pipes, including garbage disposals, plastic, metal, septic systems and older pipes. Whether you have a total blockage or a slow running drain, it works in the bathtub, public showers, bathroom sink, office sink and garbage disposal, and when used monthly prevents buildup and stops clogs from forming. For garbage disposals, follow same usage directions and flush with disposal running. Avoid all splashing. Application: Drain Cleaner; Applicable Material: Metal; Old Pipes; Plastic; PVC; Chemical Compound: Sodium Hypochlorite; Dirt Types: Hair; Gunk; Grease; Soap Scum.