4.3-oz. Grout Whitener
4.3 -Oz. Grout Whitener, Re-Whitens Grout, Apply To Grout Lines & Allow To Dry, Protects Against Soil, Stains & Mildew, Unique Formula Penetrates Deeply As It Dries, Forms Durable Bond With Porous Grout, Suitable For Use On Floors & In Showers.