12x Concentrate makes six 16 ounce spray bottles (or 96 ounces total) of cleaning solution when mixed with water according to instructions Better for the Environment Removes soap residue and hard water stains thanks to the power of citric acid from lemons and glycolic acid derived from plants. In addition, it does not emit harmful vapors or contains abrasives With long-lasting foam and a fresh, citrus fragrance, Tub and Tile naturally melts away tough soap scum and hard water stains