Midland Metal 640046 Straight Connector, 1/4 in 37 deg JIC Male Flared x 3/8 in Male ORB, Steel

Adapter, Connection Size 1: 1/4 in, Connection Type 1: Male JIC, Connection Size 2: 3/8 in, Connection Type 2: Male O-Ring Boss, Steel, 7/16-20 x 9/16-18 Thread, 4500 psi, Additional Information: 4500 psi Non-Adjustable