Highly inhibited sulfuric acid. A highly migrational and penetrating drain opener designed for every day professional use. Bonds to all organic matter and then reacts to liquefy the contaminants on contact. Packaged in patented HSE Technology™ Heat Shrink Encapsulation bag that is acid and tamper resistant. Dissolves grease, soap scum, hair, wood, sanitary napkins, paper and other common clogs handled by a professional. Safe for most piping systems and septic tanks.