30" Backdraft Damper / Wall Shutter, 30-1/2" x 30-1/2" Opening Required
- Item# 3C309
- Mfr. Model# 3C309
- Catalog Page# 3665
- UNSPSC# 40101504
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- Item Backdraft Damper / Wall Shutter
- Fits Fan Dia. 30"
- Overall Square 33"
- Opening Required 30-1/2" x 30-1/2"
- Frame Depth 3"
- Open Depth 6-1/4"
- Flange Width 1-1/2"
- Mounting Hole Size Prepunched
- Free Area 5.452 sq.ft.
- Max. Velocity 2500 FPM
- Mounting Position Vertical
- Blade Material White Painted Aluminum
- Construction Material Extruded Aluminum Frame and G-90 Galvanized Tie Rod
- For Use With Vertical Mounted Exhaust Fans
- Number of Panels 1
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