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Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq MPN:3HHL7

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In Stock
Brand: Dayton
Part #: 3HHL7
UPC: 190735289549
SKU
510-G2135865
Regular Price $189.41 Special Price $135.29

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Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq

The Dayton Backdraft Damper is a reliable solution for preventing backdraft and maintaining a healthy indoor air quality. This vertical/horizontal mounting damper is designed for square ducts with a nominal diameter of 28 inches, ensuring a secure fit and optimal performance. The aluminum spring-backed damper features a free area of 4.9 square feet, allowing for maximum airflow while minimizing energy losses. Ideal for use in commercial and industrial settings, this damper is perfect for applications such as laboratories, hospitals, and data centers where precise control over air quality is crucial. Its durable galvanized steel construction ensures long-lasting reliability.

Top product features:

  • It has an aluminum spring backdraft damper that helps to prevent backdrafts and maintain air pressure in the duct system.
  • It is designed for nominal duct diameter of 28 inches, allowing for efficient airflow and optimal performance.
  • It has a maximum air velocity of 2000 fpm, ensuring that the damper can handle high airflow rates without compromising performance.

Top product applications:

  • Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq from Dayton is used for Backdraft, For Nominal Duct Diameter 28 in, For Duct Shape Square.
  • Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq from Dayton is used for Maximum Air Velocity 2000 fpm, Maximum Pressure 1 in wc.
  • Backdraft Damper, Vert/Horiz Mtg, 27 3/4Sq from Dayton is used for Free Area 4.9 sq ft, Fits Fan Diameter 28 in.
27.8 In.H-W 4.5 In.L Alu Spring Bkdrft Dampr, Damper Application Backdraft, For Nominal Duct Diameter 28 in, Frame Material Galvanized Steel, Number of Panels 1, Maximum Air Velocity 2000 fpm, Overall Height 27 3/4 in, Rough Opening Diameter 28 in, Rough Opening Shape Square, Fits Fan Diameter 28 in, For Duct Shape Square, Free Area 4.9 sq ft, Overall Width 27 3/4 in, Frame Material Thickness 20 ga, Overall Length 4 1/2 in, Frame Depth 2 in, Rough Opening Length 28 in, Maximum Pressure 1 in wc

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: 29.60
  • Package Width: 2.50
  • Package Height: 30.50
  • Package Weight: 7.40
Product info last updated on January 23, 2026 9:23am UTC Category: Ventilation
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In stock