Pipe, Fittings, and Flanges | Reducer Couplings | Carbon Steel Pipe Fittings | Black Pipe and Fittings | Stainless Steel Pipe and Fittings | 1-1/2" x 1-1/2" x 1" | 1" x 3/8" | 1" | 2-1/2" x 2" | 3/4" x 1/2" x 1/2" | 3" x 3" x 2"