Product reviews for Expert Tub Tile Cleaner Concentrate 1gal Bottle 4Carton 

Effectively and easily take on the tough job of bathroom cleaning. The fast acting, heavy duty formula of this bathroom cleaner features mild acids that are safe to use on all bathroom surfaces. Formula foams when used with foam trigger sprayer to eliminate bounce back. One gallon concentrate yields five gallons of cleaning solution. ChemicalsCleaners Type Bathroom Application Tiles, Tubs Applicable Material Ceramic, Fiberglass, Glass, Porcelain, Stainless Steel Chemical Compound Hydrochloric Acid.