Revolutionary ECM motor with SmartFlow™ Technology ensures optimal CFM outputBuilt-in Pick-A-Flow® airflow selector allows you to select your required airflow of 50, 80, or 110 CFM with a simple flip of a switchSingle-hinged Flex-Z Fast® bracket provides flexible, fast and easy installationLow profile 5-5/8 housing depth fits in 2 x 6 joist size or largerCan be used to comply with ASHRAE 62.2, LEED, IAP and California Title 24

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