For Sinks with no overflow, fits through 1-5/16″ drain hole. 2″ flange, fits sinks up to 3″ thick, and can be cut down. Set back is 5″ on center, tailpiece is 1 1/4″ in diameter. This drain assembly is commonly used on antique standing waste pedestal sinks where the original standing waste is completely missing. Chain and stopper supplied with drain.