Clean your hull quick and easy.Powerful yet safe, this cleaner is formulated to remove hull, waterline and rust stains quickly and easily. Much safer than acid-based hull cleaners, it contains no caustics, dyes, fragrances or phosphates that can harm the environment.Key FeaturesInstantly removes hull stains at waterline; Safer than harsh, acid-based cleanersWorks without solvents or harsh chemicalsBiodegradable, environmentally friendly formulaSafe for use on fiberglass and painted surfaces