Cultured Marble Vanity Backsplash, 30.5"W x .75"D x 2.375"H in Solid White Home Depot Price: $44.99 The 36-1/2 in. Cultured Marble Backsplash in White protects walls from water damage and stains. With its seamless, one-piece design, the backsplash adds a matching, finishing touch to the bathroom. Simple and easy installation with clear silicone caulk/adhesive. 36.5 in. W x 0.75 in. D x 2.375 in. H Protects walls and cabinets Durable cultured marble provides years of use 1-piece design for easy care and cleaning Universal left or right fit Complements white vanity tops Provides a finished look between the vanity top and wall Simple and easy installation