Schaefer WS-570 Aluminum Exhaust Fan Shutter Outlet 57 Inch schaefer vk12-b Schaefer 485S112 Galvanized Belt Drive

Schaefer 485S112 Galvanized Belt Drive Slant wall Exhaust Fan 48" 1

Simply connect the unit to the suction line

inside the trailer/truck with no resulting air surges

Cool Machines CM450024-5HPvacpack Vacpack Insulation Machine

Schaefer WS-570 Aluminum Exhaust Fan Shutter Outlet 57 Inch schaefer vk12-b Schaefer 485S112 Galvanized Belt DriveSchaefer WS 570 WS 570 Aluminum Exhaust Fan Shutter Outlet 57 Inch Schaefer WS 570 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