The Baltic Top Spud Elongated 10? Rough Floor Mount Toilet Model 1311NS-BISC is a biscuit 10? rough with a water surface area of 10?x12?, with a 2? diameter glazed. This Toilet has a water usage of 1.6gpf/6.0lpf due to its high quality fixtures. This toilet is designed for industrial and commercial uses, and comes with a 2? Top Spud that is made to use many different flush valves. The Baltic Top Spud Elongated 10? Rough Floor Mount Toilet Model 1311NS-BISC is made out of a durable vitreous china material, and has a standard china finish. The Baltic Top Spud Elongated 10? Rough Floor Mount Toilet Model 1311NS-BISC comes with the Mansfield limited lifetime warranty. Mansfield is an American company that?s been in business 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.