Quiet, yet powerful – ideal for new and remodel residential applications, Integrated 4″ or 6″ duct adaptor on 50-110 CFM models, Can be used to comply with ASHRAE 62.2, LEED, IAP, EarthCraft, CA Title-24 and WA state code, Total order can not exceed 4 Vent Fans. Otherwise, order will be cancelled.
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