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 WA421 | Marvair MGA3090 | Difference |
|---|---|---|---|
| No matches in measurement | - | - | - |
| Mismatch | Bard WA421 | Marvair MGA3090 | Difference |
|---|---|---|---|
| Unit width | 42" | 50.5" | +8.5" |
| Unit height | 84.875" | 93.625" | +8.75" |
| Unit depth | 22.5" | 46.063" | +23.563" |
| Unit weight | 500 lbs | 1160 lbs | +660 lbs |
| Supply Air | 29.875" x 9.875" | 43" x 16" | +13.125" x +6.125" |
| Return Air | 29.875" x 15.875" | 43" x 22" | +13.125" x +6.125" |
| Distance from the top to Supply | 2.125" | 1.063" | -1.062" |
| Distance between Supply and Return | 30" | 26" | -4" |
| Distance from Return to bottom | 27" | 28.562" | +1.562" |