Rooftop Ventilation Econo Vent
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ECONO VENT 26 Gauge Galvanized Steel. Pack Quantity:1.
| Description | CMI # | N.F.V. | Flange | Rough Opening |
|---|---|---|---|---|
| 18 in. x 18 in. | 1818EV | 240 sq. in. | 26 in. x 26 in. | 18 in. x 18 in. |

| Description | CMI # | N.F.V. | Flange | Rough Opening |
|---|---|---|---|---|
| 18 in. x 18 in. | 1818EV | 240 sq. in. | 26 in. x 26 in. | 18 in. x 18 in. |