Designed to meet your most demanding cleaning needs, this multipurpose formula performs like an acid, but it's as gentle on the skin as liquid dish soap. Highly effective against rust, calcium, scale and lime deposits, soap scum, hard water stains, scuff marks, grease and more. Use full strength for tough cleaning jobs, or dilute at a rate of up to 1:25 for use with sprayers and foamers. Gemplers Enviro-terra Concentrate is backed by our Quality Guarantee. See our for full details.