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A louver vent hood designed to protect fans from and prevent entry of dust, debris and outside air into ducting. Each shutter vent features rubber pads that repress the sound of slamming louvers while ensuring a complete seal from the outside elements. The thin shutter blades automatically open when the duct fan runs and closes when not in use, ensuring one-way airflow that keeps the ducting clear. Durable, lightweight steel makes up the whole-body frame and vent blades, enabling them to withstand all kinds of weather and temperatures.
