BENCH, BATH (SHOWER CHAIR) W/ BACK, ADJUSTABLE, EACH Aluminum Bath Bench with Tool-free Removable Back 19-3/4" H x 20" W x 14-1/2" D, Grey, 400 lb Weight. Aluminum Bath Bench with Back comes in an easy, snap together assembly. The blow molded bench, with drainage holes for reduced slipping, provides comfort, strength, and added safety. The aluminum frame is lightweight, durable and corrosion proof. Product is made from recycled materials.