Blue Anodized Aluminum Adapter, -08 Male JIC 37 deg Flare To 1/2 Inch Male NPT, Straight

That's the connection this adapter is built for. One end is a -08 Male JIC 37 degree flare, the other is 1/2 inch Male NPT, straight configuration. Both threads are male, so you'd be threading the JIC end into a female JIC swivel or fitting, and the NPT end directly into a female NPT port on your manifold. Just make sure both receiving ends are female and you're good to go.

This adapter uses a 1/2 inch male NPT thread for the pipe connection.

This adapter features a -08 Male JIC 37-degree flare on one end and a 1/2 inch Male NPT on the other, so you'll want to verify that those sizes are appropriate for your application.

With a -08 male JIC 37 degree flare on one side and a 1/2 inch male NPT on the other, it’s meant to connect a -08 JIC female swivel end to a 1/2 NPT female threaded port in a straight-through setup.