Backdraft Dampers - Steel Frame - WD-340
The WD-340 backdraft damper bolts to the flanged outlet of Greenheck model USF utility blowers. Motorpacks are optional.
Pressure: Up to 2 in. wg (0.5 kPa)
Velocity: Up to 2500 fpm (13 m/s)
Temperature: Up to 180°F (82°C)
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Shipping: 2-3 Business Days