Nelson Machined Brass Pipe and Hose Fitting, DBL Male-Dual Threaded/Female Hose by Female 3/4-Inch NPT or Female Hose by Male 1/2-Inch NP 4829 Machined brass contruction Double Male - 3/4" male NH - 1/2" female NPS or 3/4" male NPT Connects to:- Female garden hose (NH) - 1/2" male pipe (NPS) or 3/4" female pipe (NPT)