Schaefer WS-510 Aluminum Exhaust Fan Shutter Outlet 51 Inch schaefer 363b12 (SVH-LF8) is an Air Systems

(SVH-LF8) is an Air Systems International Flat Duct

5"L x 31"W x 4

the Falltech Rail Anchor allows tha anchor to trail the worker as they move from one work location to the next - enchancing safety without reducing worker mobility

Fits beam flanges from 3" to 14" wide and up to 1-1/4" thick

Ate greenhouse polyethylene

Schaefer WS-510 Aluminum Exhaust Fan Shutter Outlet 51 Inch schaefer 363b12 (SVH-LF8) is an Air SystemsSchaefer WS 510 WS 510 Aluminum Exhaust Fan Shutter Outlet 51 Inch Schaefer WS 510 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