The Mansfield ProFit 3 Round complete round toilet bowl Model 137CTK-BISC is a Biscuit complete toilet with conservative water usage of 1.6gpf/ 6.0lpf all the fixtures. This toilet is complete with both the bowl and the tank which are connected by 3 bolts; both are made with the extremely durable vitreous china material completing this hardy piece of equipment. The Mansfield ProFit 3 Round complete round toilet bowl Model 137CTK-BISC is a 12? rough in model with a 2? Glazed Trapway, a 2? flush tower, and a water surface area of 9?x10?. The Mansfield ProFit 3 Round complete round toilet bowl Model 137CTK-BISC is a Mansfield product and is one of the products that comes with the limited lifetime Mansfield warranty, and has the ADA Standard . Mansfield is an American company that?s been around since 1929, and has been one of the top producers in design, and quality for the past 80 years. They are the largest domestic producer of sanitary ware, and strive to ensure you get the best products available.