The D-lead Surface Cleaner is a professional-grade all-purpose liquid cleaner designed for effective cleaning of hardware and components conveniently packaged as 4 one-gallon bottles.D-lead Surface Cleaner All-Purpose Liquid4-pack of 1-gallon plastic bottlesProfessional-grade liquid formulaSuitable for cleaning hardware and componentsConvenient bulk packaging for commercial useIdeal for industrial facilities workshops and commercial environments requiring reliable surface cleaning solution with the convenience of bulk packaging.