Marvair ECUA12
Bard WA181
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 Marvair ECUA12 Bard WA181 Difference
No matches in measurement - - -
Mismatch Marvair ECUA12 Bard WA181 Difference
No mismatches in measurement - - -