Auto-Pilot AO-1
Fits many Auto-Pilots. Flange to flange is 2" 3/4. Across the face of the flange on the cell.
Mine slides together- No screws- and No radiator clamp.
WARNING: The following product(s) can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.p65warnings.ca.gov