433Automatic Shutter (use with Models 353 and 35316 — Sold separately).

  • Overview
  • Specifications
  • Reviews
  • Answers
    • Allows more air movement than conventional stationary attic louvers
    • Counter-balanced aluminum vanes open automatically when ventilator is turned on, close when fan stops
    • Flange fits flush against outside wall for neat, smooth appearance
    • Reinforced for strength; provides weather tight closure
  • 433 is rated 4.5 out of 5 by 11.
    Rated 5 out of 5 by from Excellant Value! I purchased this 8 months ago and I am very delighted with its quality. The price was ideal and the shipping charge was minute. My purchase arrived sooner then expected, it was easy to install and I am as happy with Build.com as could be!
    Date published: 2015-01-23
    Rated 5 out of 5 by from Well made. Replaced a plastic shutter that the sun ate up. This one seems well made and should last a long time.
    Date published: 2014-07-07
    Rated 5 out of 5 by from Aluminum Shutter for attic fans Produce was perfect-as ordered. Used to find these in the big box stores, but no more..oh well. At least we can order them online. They work fine..Stay closed when fan is off, keeping heat in & vermin out. Work thru gravity. I have one that's 35 years old, still works great!
    Date published: 2013-09-03
    Rated 5 out of 5 by from This damper works great This is the perfect companion for my fan.
    Date published: 2012-10-28
    Rated 4 out of 5 by from Not elegant, but it does the job This grille should be extremely durable; its construction is top-notch, with all-aluminum wear points and high-quality weatherstripping. If I were installing it again, I would shim out the bottom to give it a bit of top-in tilt to ensure that the flaps close securely when the fan's not running. Hung plumb, they have a tendency to not shut tightly; this could provide entry for insects.
    Date published: 2012-08-07
    Rated 4 out of 5 by from Does the job Easy to install and does the job.
    Date published: 2012-08-02
    Rated 4 out of 5 by from good working shutter Fits real well with a Broan 15" attic fan with easy floating shutters from fan power and a nice fitting seal when fan is off.
    Date published: 2011-10-07
    Rated 4 out of 5 by from as advertised Performs as expected. Arrived in good condition and was easy to install
    Date published: 2011-09-07
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  • MADE IN USA?

    If this product is not made in the USA I need a tarriff code based on the country of origin. Thanks, Jeff
    Asked by: Engineer
    The 433 shutters are made in Michigan, USA.
    Answered by: Engineer
    Date published: 2013-11-09

    Can the 433 be painted?

    Asked by: Jeff
    Thank you for your question on the model 433 gable mounted louvers. The 433 is made from aluminum and should be able to be painted as long as it is primed properly.
    Answered by: BroanCustomerService
    Date published: 2014-06-23

    Broan 433 Shutter

    Is there a mechanical stop to prevent a lower louver to wedge itself under a higher louver by being blown past horizon in high gusty winds, and completely vertical upward? I've been experiencing this with you competitors shutter.
    Asked by: Chuck
    Thank you for your question. Yes, there is a mechanical stop on the model 433.
    Answered by: BroanCustomerService
    Date published: 2013-10-23

    Is there an installation PDF or web page?

    I see the Specifications Sheet PDF here, but I do not see installation instructions anywhere. Is there a TOP and a BOTTOM? (Or does it not matter so long as the louvers are horizontal?) Is any mounting hardware included (like screws)? If not, what kind of screws are recommended? Does the product come with any installation instructions?
    Asked by: Mark
    Thank you for your question on the model 433 shutter. We have added the installation instructions to the 433 product page. We appreciate you bringing this to our attention. If you have further questions, please give our Technical Support Department a call at 800-637-1453.
    Answered by: BroanCustomerService
    Date published: 2016-09-15

    How many inch are needed for shutter open all the way up to get maxi. air flow? what are length and width for the opening?

    I will need to create custom frame ( install the shutter from inside) before install fan. I need to know all detail. please provide information on space needed when shutter open up,like attached picture.
    Asked by: Cathy
    Thank you for your question on the model 433 gable vent. Please contact our Technical Service Department at 800-637-1453 and we can give you all the dimensions of the vent.
    Answered by: BroanCustomerService
    Date published: 2013-10-23
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