KOHLER K-5713-0 Underscore Oval Drop-In Bath with Center Drain, 60 x 36", White Molded lumbar support offers extra comfort while bathing Oval-shaped basin offers a graceful and spacious bathing experience Slotted overflow allows for deep soaking Requires K-7271 or K-7272 Clearflo slotted overflow bath drain (sold separately) KOHLER ExoCrylic material offers 30% lighter product weight for easier installation compared to Kohler Brand Acrylic FRP