Helps keep drains running smoothly! Safe for all pipes and plumbing! Does not contain lye. Red Devil Drain Maintainer helps remove the tough build-up that causes slow-running drains. It contains natural ingredients and enzymes that help breakdown fat, oil, and grease to help keep your drain running smoothly. Does not contain lye. Safe for all pipes and plumbing. Will not harm stainless steel, porcelain or enamel surfaces. Made in U.S.A.