Krowne 22-404 Krowne Lever Waste Drain, 3-1/2" sink opening, 2" NPS Drain Outlet, 1-1/2" Reducer with rubber washer, 4-1/2" flange, stainless steel strainer & handle, 1-1/4" overflow outlet with cap drain outlet: 2" NPS outer threads & 1-1/2" female inner threads (overflow outlet accepts overflow head model# 22-500 & overflow elbow model# 22-501)