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 WA121 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | Marvair ECUA12 | Bard WA121 | Difference |
|---|---|---|---|
| Unit width | 18.25" | 30.125" | +11.875" |
| Unit height | 58" | 46" | -12" |
| Unit depth | 12" | 14.625" | +2.625" |
| Unit weight | 160 lbs | 155 lbs | -5 lbs |
| Supply Air | 14.375" x 11.75" | 17" x 5" | +2.625" x -6.75" |
| Return Air | 13.25" x 5" | 17" x 10" | +3.75" x +5" |
| Distance from the top to Supply | 20.875" | 2.25" | -18.625" |
| Distance between Supply and Return | 19.25" | 5" | -14.25" |
| Distance from Return to bottom | 1.125" | 23.75" | +22.625" |