Vortex Powerfan 4" In-Line Duct Fan

With its more powerful motor combined with its aerodynamically designed shape, Vortex Powerfans are the performance leader in its category. The Vortex Powerfan VTX Series fans feature a 10 year warranty. Features: * 4" Duct Diameter * Permanently lubricated sealed bearings * External rotor motor with automatic reset thermal overload protection * Suitable for airstream temperatures up to 140°F (60°C) * Aerodynamic design allowing more air flow * 100% speed controllable easing air flow adjustment * Prewired with 120V power cord * Extended collar and clip for easy duct hook-up * Brackets included to accommodate a wall or ceiling mount