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

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    • 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
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    • 2015-07-02T20:11:07.207-05:00
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    • 2015-07-02T20:11:07.208-05:00
    • bvseo_lps, prod_bvqa, vn_prr_5.6
    • cp-1, bvpage1
    • co_noquestions
    • loc_en_US, sid_d3ebefc7-f2bc-401d-b97b-a858c33e8203, prod, sort_default
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