641FAFresh Air Inlet Wall Cap for 6" Round Duct for Range Hoods and Bath Ventilation Fans

  • Overview
  • Specifications
  • Reviews
  • Answers
  • Maximize the air and sound performance of your Broan ventilation fan or range hood using one of our wide variety of ducting accessories.

    • Overall size showing on the surface is 9" square with a 5-1/2" hood and a 1-1/4" long attachment collar for 6" round ductwork (NOT for use with dryer venting)
    • Designed for use with make-up air inlet applications (no backdraft damper)
    • Wall cap is made of 22 gauge CRCQ steel construction with a .025 natural aluminum finish for durability and long life
    • Sold as 1 to a carton
  • 641FA is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Good design I like this product. Easy to install. .............
    Date published: 2014-02-06
    Rated 5 out of 5 by from Fresh Air Intake I installed six of these as fresh air intakes in a large crawlspace with a powered exhaust fan. They work just as I had hoped and are of good quality. I would definitely buy them again.
    Date published: 2012-07-07
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  • Does the 641FA have a grill/wire to prevent bird intrusion?

    Asked by: Robert
    The 641 and 641FA both have a mesh bird screen. The 641 is intended for exhaust so it also has a damper. The 641FA is intended for fresh air intake so has NO damper. The answer from Broan Customer Service was not exactly correct.
    Answered by: GaryTheSnail
    Date published: 2014-06-21

    Hood does not fit inside or outside rigid 6 inch duct

    The diameter looks the same or just slightly smaller than rigid 6 inch duct, but not small enough for the duct to fit over it. Is it better to crimp the duct or the wall cap to make them mate?
    Asked by: Steve Dundorf
    Thank you for your question on the model number 641FA wall cap. The collar on the 641FA should fit into six inch rigid duct work. If you find that you need to crimp the duct work or the wall cap, we would suggest crimping the duct work.
    Answered by: BroanCustomerService
    Date published: 2014-04-15

    What is the difference in 641 and 641FA

    What is the difference in 641 and 641FA
    Asked by: Alex81
    Thank you for your question on the model 641 and 641FA wall cap. The 641 is designed for use as an exhaust wall cap and used with six inch ducting. The 641FA is designed as an inlet wall cap designed for six inch ducting where you are bringing make-up air back into the house. Please contact the Technical Service Department at 800-637-1453 if you need further assistance.
    Answered by: BroanCustomerService
    Date published: 2016-03-24

    Can this product be used to exhaust air when used with a Broan QTX series bathroom ventilaion fan?

    The QTX series bathroom fan I installed has a back-draft damper in the plastic transition piece to the round duct. Can I use the inlet cap to exhaust my fan through the wall?
    Asked by: Tom
    Thank you for your question on the model 641FA fresh air inlet wall cap. The 641FA is designed to work with six inch duct work in a make-up air inlet application. It is not designed for exhausting air. Please contact the Technical Service Department at 800-637-1453 for further assistance.
    Answered by: BroanCustomerService
    Date published: 2015-11-16

    Am I able to order a replacement bird screen?

    Asked by: Luke
    Thank you for your question on the model 641FA wall cap. The bird screen for the 641FA is not available as a parts item.
    Answered by: BroanCustomerService
    Date published: 2016-03-07
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