Bard W18AA
Bard 36WA4
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 W18AA Bard 36WA4 Difference
No matches in measurement - - -
Mismatch Bard W18AA Bard 36WA4 Difference
No mismatches in measurement - - -