My 1988 3300 has a NorCold Model#DE704 ..... still works on AC, but not DC. It is on my list to upgrade.
Found dimensions for cutout H 33 1/8 x W 22 x D 21 3/4
Found dimensions for cutout H 33 1/8 x W 22 x D 21 3/4
1988 33 Open - 454 Crusader - Trophy Hunter

