Description
Backdraft Damper / Wall Shutter, Fits Fan Dia. 18 in, Shutter Overall Size 21 in x 21 in, Shutter Construction Material G-90 Galvanized Steel Frame and Tie Rods, Shutter Opening Required 18-1/2 in x 18-1/2 in, Shutter Free Area 2.051 sq ft, Vertical Shutter Mounting Position, Shutter Mounting Location Wall, Frame Depth 2 1/4 in, Open Depth 6 1/4 in, Flange Width 1 1/2 in, Mounting Hole Size Prepunched, Max. Velocity 2000 FPM, Blade Material Mill Finish Aluminum
Specifications
- Mfr #: 2C521
- Item: Backdraft Damper / Wall Shutter
- Shutter Mounting Position: Vertical
- Shutter Mounting Location: Wall
- Shutter Construction Material: G-90 Galvanized Steel Frame and Tie Rods
- Shutter Free Area: 2.051 sq ft
- Shutter Opening Required: 18-1/2 in x 18-1/2 in
- Shutter Overall Size: 21 in x 21 in
- Fits Fan Dia.: 18 in
- Blade Material: Mill Finish Aluminum
- Max. Velocity: 2000 fpm
- For Use With: Vertical Mounted Exhaust Fans
- Mounting Hole Size: Prepunched
- Open Depth: 6 1/4 in
- Frame Opening A: 18 in
- Frame Depth: 2 1/4 in
- Number of Panels: 1
- Flange Width: 1 1/2 in
- Shutter Overall Square: 21" x 21"
- Frame Opening B: 18 in
- Shutter Item: Backdraft Damper / Wall Shutter
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