Hex Reducer Bushings | Coupling | Reducing Female Adatper | Reducing Insert Male Adapter | Rubber Coupling | Socket Weld Flange | Socket Weld x FIP | 1/2" x 1/4" | 1/2" | 1" x 3/4" | 1" x 3/8" | 3" x 3/4" | 4" x 1-1/2"