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Controls & Electrical

Broan® Automatic Shutter

  • 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
  • Use with Models 353 and 35316 — sold separately



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