4in x 2in | Female Cam x MIP Adapter | Male NST x Male NPSH Adapter | MIP x Male NPSH Adapter | MIP x NST (NH) Adapter | Reducer Coupling | Reducing Insert Male Adapter | Threaded Flanges | 1-1/2" | 1" x 3/8" | 3" x 1/2" | 3" x 3/4" | 4" x 1-1/2"