Brass | Hex Reducer Bushings | Male Adapter | Male Cam x MIP Adapter | Male NST x FIP Adatper | Reducer Coupling | Slip On Flanges | 1-1/2" | 1" x 3/4" | 1" x 3/8" | 2" x 1/4" | 3" x 3/4" | 4" x 1-1/2"