Midland Metal 6400128 Straight Connector, 3/4 in 37 deg JIC Male Flared x 1/2 in Male ORB, Steel

Adapter, Connection Size 1: 3/4 in, Connection Type 1: Male JIC, Connection Size 2: 1/2 in, Connection Type 2: Male O-Ring Boss, Steel, 1-1/16-12 x 3/4-16 Thread, 3600 psi, Additional Information: 4500 psi Non-Adjustable