Bard 42WA
Marvair ECUA18
MISMATCH

These units don’t appear to have much in common. If you’re replacing one with the other, you’ll need to make some modifications to wall, unit or something in between with a plate or adapter curb.

Match Bard 42WA Marvair ECUA18 Difference
No matches in measurement - - -
Mismatch Bard 42WA Marvair ECUA18 Difference
No mismatches in measurement - - -