Americh OM6636B-BI Madison Oval 6636 - Builder Series - BiscuitProduct Info Description This modern design with its rounded interior and integrated arm rests offers maximum relaxation. The Madison Oval is part of the Americh Drop in Collection and can be purchased with any system. Gallons to Overflow: 70 Whirlpool Operating Gallons: 45 Material: Acrylic (All Americh Standard Colors) Tub Floor: Textured Undermount: Yes Builder Series Color Match Trim 1 HP Pump Air Switch with 10 Minute Timer Pre mounted Pump +