Broan 433 Automatic Shutter for Attic Fans

- Item #: BCI417790

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Automatic Shutter - Model 433

  • 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

Additional Broan Links

Our SKU: Broan 433

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

  • Broan 433

*Denotes a finish or option that has been discontinued

Broan 433 Product Specifications

Country Of Origin USA

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    Automatic Shutter for Attic Fans

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