1/2in | Bushings | Hex Reducer Bushings | Insert Barb x Insert Barb Coupling | MIP x NST (NH) Adapter | Reducer Coupling | 1-1/4" x 3/8" | 1/2" x 1/4" | 1/2" | 2" x 2-1/2" | 3" x 1-1/2" | 4" x 2" | 8" x 8"