Easily replaces a standard 5' bathtub with an easy-access shower or install one in new construction where a standard bathtub was planned. Provides approximately 35% more usable interior floor space than a standard bathtub. ShowerTub is sized and designed to be installed with no need for major replumbing or changing room layout. Fits in a 30" x 60" bathtub space and uses the existing 1-1/2" tub waste. Drain hole is offset 8-1/2" x 15". 4" high threshold eliminates the difficulties of stepping up and over a 15" bathtub apron. 1-piece molded fiberglass construction features a slip-resistant floor and semigloss finish that resists mold, mildew, and stains. Available as left or right hand units. Can be used with E.L. Mustee shower wall Model No. 260WHT, (SKU 466603).