3/8 x 1/2 push lock Straight fitting.
This fitting will work with any type of line. Plastic, Nylon, Copper, and Stainless. Will work with fluid, compressed air, nitrogen, helium, any inert and noncombustible gases. For a simple and quick assembly of pneumatic circuits
made from nickle plated brass. O-ring is a silicone free nitrile.