Gravity-operated shutter prevents backflow in high-velocity applications when the fan is off. Mill-finish extruded aluminum frame and louvers with stainless steel tie rods and fasteners. Vertical mount on prepunched holes; installation hardware not included.
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- Item Backdraft Damper / Wall Shutter
- Fits Fan Dia. 36'
- Shutter Overall Size 39' x 39'
- Shutter Construction Material Extruded Aluminum Frame and Stainless Steel Tie Rods
- Shutter Opening Required 36-1/2' x 36-1/2'
- Shutter Free Area 7.436 sq. ft.
- Shutter Mounting Position Vertical
- Shutter Mounting Location Wall
- Shutter Item Backdraft Damper / Wall Shutter
- Frame Depth 3'
- Open Depth 6-1/4'
- Flange Width 1-1/2'
- Mounting Hole Size Prepunched
- Max. Velocity 3000 FPM
- Blade Material Mill Finish Extruded Aluminum
- For Use With Vertical Mounted Exhaust Fans
- Number of Panels 1