643Wall Cap in Aluminum; Ventilation Fans

  • Overview
  • Specifications
  • Reviews
  • Answers
    • Wall cap designed for use with 8” round duct
    • Built-in backdraft damper keeps out unwanted outside air
    • .025 Aluminum, natural aluminum finish for durability and long life that stands up to the elements (not for use with dryers)
    • Attachment collar 3-3/8" long
  • 643 is rated 2.8 out of 5 by 4.
    Rated 1 out of 5 by from Not to Broam Standards This unit is so cheaply built from very very thin aluminum that a pop can has more. Received it from shipping all miss conformed, its thin flapper open's and allow a backdraft with the slightest of air movement. Find something more for your money.
    Date published: 2015-04-06
    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
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