Designed for residential and light commercial ventilation applications, MFT Mixed Flow In-Line Fans feature UV-resistant plastic housing and 2-speed motor with permanently lubricated ball bearings. Units are available in 4, 6, 8, 10, and 12 in. duct diameters with airflow capacities up to 1,051 cfm. Precision-balanced for quiet and vibration-free operation, fans are suitable for air temperatures up to 140°F and may be mounted in any position with included brackets.