Triangle's IWS exhaust shutters provide effective airflow but they also operate quietly. The shutter function automatically; opening, allowing air movement, and closing, when the fan is off. This model mounts directly to the fan housing.
Features:
- Exhaust shutters automatically open and close with fan operation
- Extruded corrosion resistant aluminum mill finish blades.
- Durable bronze bushings for smooth, maintenance free operation Polyester powder coated steel frame.
