Dissolves grease & hair in 60 seconds or less odorless 4-in-1 drain cleaner: small drains, grease traps, septic systems, root control will not harm porcelain, chrome, plastic or metal pipes, fine Plumbing fixtures, acrylic or fiberglass non-acid formula - contains high percentage of sodium hydroxide will not harm plumbers snakes enhances the growth of active bacteria can be stored indefinitely 2 LB.