4-11/16 OD Top Sub for 15K High Pressure Pack-Off with O-Ri

4-11/16 OD Top Sub for 15K High Pressure Pack-Off with O-Ring/Non-Extrusion Ring Groove on Pin End, furnished with 2-7/8 PH6 7.9# Box Top Connection.f/ Logan Series 150 Overshot (9110)