Sterling Performa white wall sets are designed to be used exclusively with Sterling Performa tubs; left hand tub model No. 71041110-0 (SKU 440272) and right hand tub model No. 71041120-0 (SKU 440264). They are made of Sterling's exclusive Vikrell material with high-gloss finish. Vikrell is a sheet molded compound that is solid color throughout and stronger than fiberglass. Wall sets feature built-in shelves and a towel bar. The finish unit is 60" x 30" x 75-1/2" T. These units assemble with a tongue and groove system that minimizes the need for caulk. All Sterling 59" tub enclosers stocked at Do it Best will fit the Performa shower system. Doors that fit include: Model No. 5905-59S-G51 (SKU 443514), 5905-59N-G51 (SKU 452753), 5907-59PB (SKU 488933), 5906-59S (SKU 488941), and 5907-59S (SKU 488968). Sterling Vikrell fixtures are backed by a 10 year consumer warranty.