OEM equivalent: MATERIAL: STAINLESS STEEL DRAIN, FLANGE, AND HANDLE ;SIZE: 4 3/8″ FLANGE | 1 1/2″ NPS FEMALE CONNECTION | 2″ NPS;MALE CONNECTION | 3 1/2″ SINK OPENING ;PLATING: NICKEL-PLATED Original Equipment Manufacturer (OEM) Part Numbers are given as a reference tool only.