This Exhaust Fan is ideal for light duty exhaust applications. Exhaust fan features a totally enclosed ball bearing, permanently lubricated motor that provide continuous duty. Made with 16 gauge steel venturi housing reinforced with tubular steel bracing. Belt driven motor powers steel fan blades. Features 2 ball bearing pillow block sealed bearings. Three phase design. Industrial gray enamel finish. Fully assembled. Horsepower rating based upon maximum speed/load.