Junior Duo Basket Strainer, Stainless Steel, for Bar Sink Drain - By Plumb USA and Faucet888 Stainless steel body 1-3/4" threaded body. Fit 1 1/4" extension pipe. Flange: 2 3/4" Diameter Fit most brand of bar sinks Gaskets and lock nuts included Inner basket is 1 5/8" diameter.