Midland Metal 6410O126 Reducer/Expander, 1-1/16 in Male ORB x 9/16 in Female ORB, Steel

Reducer/Expander, Connection Size 1: 3/4 in, Connection Type 1: Male O-Ring Boss, Connection Size 2: 3/8 in, Connection Type 2: Female O-Ring Boss, Steel, 1-1/16-12 x 9/16-18 Thread, 2900 psi, 375 deg F Operating