This new release of the Stanwell urinal features the same streamlined style and dimensions as the original but with new enhancements including a more water-efficient flush rate of 0.5 to 1.0 gpf. The inlet spud has been reduced from 1-1/4" to the industry standard 3/4". Rough-in and wall-print dimensions remain the same as the K-4972 Stanwell, and the powerful blow-out action flushes like a bowl and offers quiet performance. Blowout flush action. 3/4" top spud. Uses 0.5 to 1.0 gallons per flush. Note: If urinal is being purchased as a retrofit for K-4972, a 3/4" valve tailpiece is also required, existing 1-1/4" valve tailpiece is not compatible. Vitreous china.