Square-top metal utility vent, recommended for kitchen duct outlets and bathroom fan exhausts as well as ventilation, large capacity of full 50 sq-in of net-free ventilating area (NFA) per vent, versatile, available with square throat in heavy-duty aluminum, easy to install, pre-drilled nail holes with extra wide flashing area. CSA listed.
| Color | : | Black |
| Height | : | 4 in |
| Installation Type | : | Roof |
| Length | : | 17-1/2 in |
| Material | : | Aluminum |
| Net Free Ventilating Area | : | 50 sq-in |
| Width | : | 17.4 in |