12-1/8 O.D. Top Sub (Oversized from 11-3/4 OD) with 6-5/8

12-1/8 O.D. Top Sub (Oversized from 11-3/4 OD) with 6-5/8 Regular Box (with 24 Long x 8 OD Fishing Neck) Top Connection. (5330)f/ Logan Series 150 Overshot