CABINET EXHAUST FANS WITH SHUTTERS 24"Diameter Fan with 120V Single Phase Motor Durable steel cabinet fans feature sturdy housing for through-the-wall installation. Cabinet exhaust fans are made to last using 18 gauge galvanized steel housing with 20 gauge powder coated venturi. 4 aluminum fan blades are powered with a ball bearing motor that is permanently lubricated and drip proof for low maintenance. Aluminum shutters provide convenient, controllable exhaust for industrial environments. Includes lead wires for hard wiring. Meets OSHA standards. UL listed. Fully assembled. 1 Year Limited Warranty. Horsepower rating based upon maximum speed/load.