The clean, contemporary look of the KOHLER® Groove shower base brings sleek style to the bathroom. Featuring a recessed rear drain, this rectangular 60" x 42" acrylic base offers a low-threshold design for easy access. Add a removable aluminum or teak cover over the recessed drain for a finished look. Kohler® Shower Base, Single Threshold, Groove® Collection, 60 in Length, 42 in Width, 4-9/16 in Depth, Center Rear Drain Location, 3-3/8 in Diameter Drain Hole, 20 psf Minimum Floor Load, Acrylic, White