The Grainger 14L771 is a 14-inch diameter, 771 CFM, direct drive, aluminum exhaust fan. It features a 1/3 HP, 115V motor with thermal overload protection and sealed ball bearings. The fan has a maximum speed of 1575 RPM and operates at 68 dBA. It is designed for exhaust applications and is UL/cUL listed. The housing is constructed of aluminum with a gray powder coat finish.