Broan 643 8" Round Duct Aluminum Wall Cap with Damper

- Item #: BCI417821


Offer Ends

$50.33
Originally $84.38, You Save 40%
Aluminum
Free Shipping!
323 In Stock
Ships Monday, December 1st

Discontinued

Please select a finish

Earn 50 points with the purchase of this product Learn More
×

and earn 350pts

Questions about Broan 643?

Contact us for advice or more details. Our product specialists are here to help.

Wall Cap - Model 643

  • For 8" Round Duct
  • Built-In Backdraft Damper
  • Aluminum Natural Finish

Additional Broan Links

Our SKU: Broan 643

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

  • Broan 643
    Aluminum

*Denotes a finish or option that has been discontinued

Broan 643 Product Specifications

Specification Sheet
Configuration Duct
Country Of Origin USA
Duct Diameter 8
Function Damper, Wall Cap
Height 13
Material Aluminum
Product Weight 2.5
Projection 6
Width 12.5

Installation Resource Center

Whether you are installing the product yourself or hiring a professional, our installation Resource Center has everything you need to get your project done. Visit the Installation Resource Center to get started.

Broan 643 Reviews

Rated 1 out of 5 by from Very noisy in any wind The banging noise from the damper flapping in the wind is annoying to say the least. Will replace this wall cap with one outfitted with a spring to keep out the wind.
Date published: 2014-04-19
Rated 4 out of 5 by from quality product This wall cap was the only one available in 8 inch so I didn't have any choice however, it is well constructed. I have two minor complaints. There is no sping to keep it from flapping in the wind nor is there any rubber or foam to decrease the noise when it flaps.
Date published: 2012-11-29
Rated 5 out of 5 by from Prompt and Easy I ordered a vent wall cap and it was a very easy purchase. It was a good price and arrived promptly. I am very satisfied and would buy here again.
Date published: 2011-05-29
  • Does it have a bug screen? And how does it attach to the wall / side of house?

    A. The Broan 643 has a damper. It goes directly into the venting pipe coming through the wall.
  • Is the Broan 643 for use for exterior brick wall with 8" dia. vent for a gas range hood vent for exterior vent cap?

    A. The Broan 643 is compatible with brick wall installations.
  • Is the damper spring-loaded?

    A. The Broan 643 has a gravity damper that is not spring-loaded.

Buy the Broan 643 at Build.com. Research Broan 643 online. Find Broan 643 features and specifications. Get the best deal by comparing the Broan 643 today.

prod22014Fam
Recently viewed items
  • Broan 643
    Broan 643

    8" Round Duct Aluminum Wall Cap with Dam...

× Shipping Rates & Methods

The cost to ship items varies by item, shipment and shipping option.

Free Ground Shipping on Orders Over $49 *

Standard ground shipping transit time is 5-7 business days.

Free Freight Shipping on Orders Over $1500 *

Curb side delivery (also called freight or "LTL" shipping) is reserved for large, heavy, or oversized items like chandeliers, bathtubs, shower doors, etc. Items are palletized and loaded onto a large truck for shipment, and delivered to your curb by scheduled appointment. Transit time is 7-10 business days.

* For exact shipping costs, add the product(s) to your cart and enter your zip code. All offers pertain to the lower 48 states and do not include deliveries to Alaska, Hawaii or Canada.

Learn more about shipping rates and policies