Clog Destroyer + PipeGuard, Gel, 80 oz, 6/Carton 3-in-1 full clog destroyer unclogs drains prevents clogs with regular monthly use and protects pipes. Cuts through standing water to clear total blockages and unclogs slow-running drains destroying hair, grease and soap scum. PipeGuard prevents pipes from being damaged while you destroy the clog; safe to use throughout your home office or facility. Prevents clogs from coming back when used monthly. Ideal for use in offices, day care centers, schools, hotels, restaurants and other commercial facilities.