8-3/8 O.D. Top Sub (Oversized from 8-1/8od) furnished with

8-3/8 O.D. Top Sub (Oversized from 8-1/8od) furnished with 4-1/2 I.F. Box (with 24 Long Fishing Neck) Top Connection and Pin thread Grooved for Set Screw. (9218)f/ Logan Series 150 Overshot.