Nelson Brass Industrial Pipe and Hose Fitting for Female Hose to 3/4-Inch Female NPT or Female Hose to 1/2-Inch Male NPS, Double Male 50572
The LR Nelson Industrial Pipe and Hose Fitting features an all brass composition.  It is designed for  3/4-inch male (NH) and 1/2-inch female (NPS) or 3/4-inch male (NPT) to connect to female garden hose (NH) and 1/2-inch male pipe (NPS) or 3/4-inch female pipe (NPT).  This product is dual threaded.