30 in 32.75"H-W Alu Universal Backdraft Dampr, 31 in x 31 in, Aluminum MPN:3HHT1
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Free Shipping
In Stock
SKU
510-G3450937
30 in 32.75"H-W Alu Universal Backdraft Dampr, 31 in x 31 in, Aluminum
This aluminum backdraft damper is designed for use in commercial and industrial settings, providing a reliable means of controlling airflow and preventing backdrafts in HVAC systems. Its spring-loaded design ensures a tight seal, while its high airflow capacity of 2250 fpm makes it suitable for a wide range of applications, including fan coil units and rooftop units. The damper's compact size and lightweight construction make it easy to install and maintain, reducing labor costs and downtime. Ideal for use in hospitals, schools, and offices, this damper provides a cost-effective solution for maintaining a healthy and comfortable indoor environment.
Top product features:
- 30 inch diameter fits a fan of the same diameter
- Maximum air velocity is 2250 feet per minute
- Frame material is 0.1 gauge aluminum
Top product applications:
- Exhaust fan installation
- Range hood installation
- Whole house fan installation
32.75 In.H-W Alu Universal Backdraft Dampr, Frame Material Aluminum, Number of Panels 1, Maximum Air Velocity 2250 fpm, Overall Height 32 3/4 in, Rough Opening Shape Square, Fits Fan Diameter 30 in, Free Area 4.8 sq ft, Overall Width 32 3/4 in, Frame Material Thickness 0.1 ga, Frame Depth 1 5/8 in, Rough Opening Length 31 in, Maximum Pressure 1 in wc, Rough Opening Width 31 in, Blade Material Aluminum, Single Acting/Double Acting Single Acting, Closure Type Spring, Flange Width 1 3/8 in
Additional Information
- Country of Origin: US
- Drop Ship Item: No
- Blind Ship Eligible: No
- LTL Freight Required: No
- Lead Time: Ships in 1 days
- Minimum Order Quantity: 1
- Unit of Measure: EA
- Package Length: 33.50
- Package Width: 2.00
- Package Height: 34.00
- Package Weight: 11.67
Product info last updated on February 4, 2026 12:42am UTC
Category: Ventilation