Caps | Compression Coupling | Hex Reducer Bushing | Hex Reducer Bushings | Reducer Coupling | Threaded Flange | Threaded Flanges | Polypropylene | 1-1/2" x 1/2" | 1-1/2" | 1/2" x 3/8" | 2-1/2" x 2" | 3" x 1-1/2"