The Erie Elongated Wall Mount Toilet Model 1301BPL -WHT is a rear outlet with a water surface area of 9?x10?, comes 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 clinical uses, and comes with a 2? Top Spud that is made to use many different flush valves, and a bed pan lungs so you can attach them and they will stay secure to prevent falling. The Erie Elongated Wall Mount Toilet Model 1301BPL-WHT is made out of a durable vitreous china material, and has a standard china finish. The Erie Elongated Wall Mount Toilet Model 1301BPL -WHT 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.