The Grainger Approved Hose Adapter is a brass hose adapter that connects 3/4 in. hose ID to 1/2 in. male pipe thread. It has a maximum pressure rating of 300 PSI and temperature rating of 250°F. The adapter is made of forged brass for durability. Key features include the 3/4 in. hose barb inlet and 1/2 in. male NPT outlet. This adapter allows you to securely connect a 3/4 in. ID hose to 1/2 in. NPT threaded pipe fittings. It can be used for air, water, oil, and inert gas applications. Overall, this is a heavy duty brass hose adapter for connecting 3/4 in. hoses to 1/2 in. NPT threaded fittings.