Continental Fan Manufacturing BDD150 Spring Loaded Backdraft Damper for 6" Ducting

- Item #: BCI1471538
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Spring Loaded Backdraft Damper for 6" Ducting

Dampers function as flow regulators and prevent ventilation when not desired, such as when the system is not in use. Let us provide all the accessories needed to install an AXC In-Line Duct Fan or EXT External Mount Exhaust Fan.

Continental Fan Company was established in 1986 to manufacture and distribute quality ventilation equipment. Their objectives then were simple… to provide superior products, dependable service, and competitive pricing. They remain unchanged today.


  • Neoprene damper seal minimizes leakage
  • 20 gauge steel housing, aluminum spring loaded butterfly damper blades
  • Gasket designed to withstand temperatures from -22° F to 180° F
  • Requires from 0.04 to 0.08 inches wg pressure to open
  • Simple installation in any position, entire assembly inserts into duct
  • Exterior foam gasket assures a tight seal against duct
  • Includes stamped metal sleeve with center pin design
  • Fits 6" Round ducting

Additional Continental Fan Manufacturing Links

Our SKU: Continental Fan Manufacturing BDD150

This product is listed under the following manufacturer number(s):

*Denotes a finish or option that has been discontinued

Continental Fan Manufacturing BDD150 Product Specifications

Depth 3
Duct Size 6" Round
Function Backdraft Damper

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Continental Fan Manufacturing BDD150 Reviews

Rated 5 out of 5 by from Easy to install Solid construction. Except for the crawl under the house, installation in an existing 6" exhaust run was easy. Fits inside the duct (snuggly thanks to the gasket) so no cutting is required. Perfect solution for a downdraft range vent, when the damper on the outside duct cover wasn't keeping out the cold air.
Date published: 2010-12-23
Rated 5 out of 5 by from
Date published: 2011-08-06
Rated 5 out of 5 by from worked well This part of my order worked well and as described. Easy installation
Date published: 2012-03-01
Rated 5 out of 5 by from Damper Super easy install and works excellent. Top quality product, goes inside the duct so there is no cutting and uses less space. Fits perfect glad I used this.
Date published: 2013-04-10

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