The waste outlet is 3 5/8 outside diameter. The rough in - 11. Seat mounts are 5 1/2apart on center. 13 1/2tall from floor to rim of the bowl. This item is in the category "Antiques\Architectural & Garden\Plumbing & Fixtures".The seller is "nysalvage" and is located in this country: US. This item can be shipped to United States.