This is no help but mine looks almost like urs and hasn't leaked for about 6-7ish yrs .. -----griffin 28x19 crossflow , griffin makes good stuff !!View attachment 1715433601
Bob,
Was this an off the shelf or custom and is that the Overall size.
Looked thru their catalog and on the phone with Griffin now, Any chance you've got a part # on your 28 x 19 Rad was this one of their $400 or $800 Rads.
