If you are planning to convert your TOTO toilet to a 10" rough-in, then go ahead! TOTO has something for you. The TOTO TSU03W.10R is a 10" Unifit rough-in intended for the 934, 964, and 974 one-piece toilets. Bring quality and innovation into your home. Because of its durable construction, this rough-in offers great functionality and value for your toilet. It is made of durable ABS material for durability and long-lasting use. TOTO understands the importance of small details. They continue to create products that connect you with water in ways that enrich the flow of your everyday life. TOTO takes pride in providing its customers with quality plumbing products that are durable, dependable, and visually pleasing.