2-1/4 O.D. (Oversized from 2-1/8 O.D.) Top Sub with 1.278

2-1/4 O.D. (Oversized from 2-1/8 O.D.) Top Sub with 1.278 I.D. and Blank (2 O.D. Shoulder) connection, made from 17-4 PH Stainless Steel Mat'l (27766)f/ Logan Series 10 Overshot