Louvers & Vents
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Item # W3AUWI
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.
For use with powered ventilation (not solar)
Works with Broan models 353 and 35316 attic ventilators
Rough cut: Approx 16.25 x 16.25 inches
Overall: Approx 19 3/4" high by 19 1/2" wide.