24-Inch Horizontal-Mount Exhaust Backdraft Damper

SKU:
WBB771536
Our Price:
$83.94
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Product Specifications:
Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 2.5"
Product Height: 24"
Product Type: Dampers
Product Width: 24"
Quantity Included: 1
Shipping Weight: 6 lbs
Manufacturer Part Number: 411-STD 24
Width: 23-3/4 in
Depth: 2 in
Height: 23-3/4 in
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Minimum Purchase:
2 units
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Free Shipping on Qualifying Orders Over $99

Product Specifications:
Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 2.5"
Product Height: 24"
Product Type: Dampers
Product Width: 24"
Quantity Included: 1
Shipping Weight: 6 lbs
Manufacturer Part Number: 411-STD 24
Width: 23-3/4 in
Depth: 2 in
Height: 23-3/4 in
Minimum Purchase:
2 units

This 24-inch backdraft damper is designed for contractors and facility teams using exhaust fans or powered roof ventilators. It helps manage backdraft in horizontal exhaust installations, including roof curbs, ductwork, and wall collars.

The non-flanged damper has a galvanized steel frame and aluminum blades. Its 24 x 24-inch face and 2.5-inch depth support horizontal-mount exhaust applications. Spring-assisted blades open quickly, while felt seals along the blade leading edges support quieter closing and added weather protection.


Key Features:

  • Spring-assisted blades: Helps the blades open quickly when exhaust airflow begins.
  • Felt blade seals: Supports quieter closing and added protection from weather.
  • Galvanized steel frame: Provides a steel frame for the damper assembly.
  • Aluminum blades: Delivers a lightweight blade construction.
  • Non-flanged design: Fits the product's intended roof curb, ductwork, and wall collar installations.

Choose this damper for 24-inch horizontal exhaust installations where a non-flanged backdraft damper is needed with an exhaust fan or powered roof ventilator.

Country of Origin: US
Material: Aluminum/Galvanized Steel
Product Depth: 2.5"
Product Height: 24"
Product Type: Dampers
Product Width: 24"
Quantity Included: 1
Shipping Weight: 6 lbs
Manufacturer Part Number: 411-STD 24
Width: 23-3/4 in
Depth: 2 in
Height: 23-3/4 in
Weight: 6 lbs
Diameter: 24 in
Free Area: 3.26 ft³
Max Pressure In W.G.: 1 in
Max Velocity: 2000 ft/min
Rough Opening: 24 x 24 in
Brand: Air Conditioning Products
For Use With: Power Roof Ventilators
Manufacturers Part Number: 411-STD 24
Mounting Location: Horizontal
Number of Panels: 1
Type: Backdraft
Warranty: 1 yr
Width: 2.50 in
Height: 24.00 in
Depth: 24.00 in