Save on MAPEI Keracolor U 10 lb Unsanded Grout in Pearl Gray (#5010) during our Spotlight Savings event. This premium polymer-modified unsanded grout is designed for grout joints from 1/16" to 1/8" and delivers a smooth, durable finish for ceramic, porcelain, glass, marble, granite, and natural stone tile installations. Featuring BioBlock® Technology to help resist mold and mildew growth, Keracolor U is ideal for residential and commercial floors, walls, backsplashes, countertops, and shower surrounds. Shop limited-time savings while supplies last.