*New in box / open box" Designed to soothe at the end of the day, the Evolution Deep Soaking Tub from American Standard is a luxurious 18-1/2-in. deep bathing pool that allows for total immersion and comfort. Featuring dual molded-in armrests, lumbar support and a safe, slip-resistant floor surface, Evolution transforms everyday bathing into a relaxing spa experience. Deep and roomy for total body immersion and comfort Drop-in or undermount installation options Requires Deep-Soak Max Drain 1640.305, sold separately Durable brass Deep-Soak Max Drain, required, is a top-mount overflow allowing a 3-in deeper water level than standard bath drains Made of glossy acrylic with durable fiberglass reinforcement Full coverage 18-1/2-in depth to overflow Comfortable, wide contoured lumbar support and molded armrests Slip-resistant floor for safety