Schaefer WS-450 Aluminum Exhaust Fan Shutter Outlet 45 Inch evaporative air conditioner and in pest infested areas

and in pest infested areas

Schaefer WS-480 Is Constructed With Brushed Heavy Duty Aluminum

Thrust: 48

5-inch diameter

Schaefer WS-450 Aluminum Exhaust Fan Shutter Outlet 45 Inch evaporative air conditioner and in pest infested areasSchaefer WS 450 WS 450 Aluminum Exhaust Fan Shutter Outlet 45 Inch Schaefer WS 450 aluminum shutter is built tough to last a lifetime in the harshest environments. Schaefer's aluminum fan shutters restrict the airflow to one direction & are utilized as building air flow inlets, for feeding exhaust fans, or to prevent air intrusion when exhaust fans are not operating. Features Constructed with brushed heavy duty aluminum which provides corrosion