Brass | Dust Plug | Hex Reducer Bushings | Pipe | Reducer Coupling | Reducer Couplings | Reducing 90 Elbows | Tees | Threaded Flanges | 1-1/2" x 1-1/2" x 1/2" | 1-1/2" x 1-1/2" x 3/4" | 2-1/2" x 2" | 2" x 1-1/4"