Flex-A-Lite designed this 109304 Black Magic Single S-Blade Electric Fan to deliver up to 3000 CFM of airflow! The reversible design allows use either as a Pusher or Puller fan for your specific application. The included Adjustable Thermostat Controller provides relay function as well as fan activation with A/C and provision for a manual override switch. Recover horsepower and improve fuel economy by replacing your stock clutch fan assembly with this system! Mounting hardware comes included for ease of installation. Flex-A-Lite 109304 Black Magic S-Blade Electric Fan System Features: Pusher/Puller: Both Voltage: 12V Amp Draw: 19.5 CFM: 3000 Adjustable Thermostat Controller Included: Yes Fan Controller Included: Yes Air Conditioning Relay Included: Yes Overall Height: 18.00 in. Overall Width: 16.00 in. Overall Thickness: 4.25 in. Fan Diameter: 15.00 in. Fan Quantity: 1 Fan Blade Style: Curved Fan Blade Quantity: 8 Fan Blade Material: Plastic Fan Blade Color: Black Shroud Included: Yes Shroud Material: Nylon Shroud Color: Black Installation Kit Included: Yes Quantity: Sold Individually Flex-A-Lite got its start with a unique belt driven fan that flexed at high engine RPM to reduce drag on the engine, and send more power to the wheels. They have applied that same engineering skill to develop a full line of cooling products designed to improve engine performance and efficiency, including radiators, electric fans, oil cooler systems, and even heaters.