Brand: Flex-a-lite Manufacturer's Part Number: 232 Part Type: Fans， Electric Product Line: Flex-A-Lite Flex-Wave Electric Fans Summit Racing Part Number: FLX-116542 UPC: 088657811194 Puller: Yes Pusher: Yes Fan Diameter (in.): 12.00 in. Fan CFM Range: 1，300-1，399 Maximum Fan CFM: 1，325 cfm Fan Quantity: Single Electric Motor Type: Brushed Height (in.): 13.000 in. Width (in.): 12.000 in. Thickness (in.): 3.500 in. Number of Blades: 10 blades Blade Material: Plastic Blade Color: Black Shroud Color: Black Shroud Material: Glass-reinforced nylon Amp Draw: 8.00 amps Air Conditioning Relay Included: No Mounting Brackets Included: Yes Mounting Hardware Included: Yes Quantity: Sold individually. Flex-A-Lite Flex-Wave Electric Fans Flex-A-Lite Flex-Wave electric fans are the revolutionary way to move more air! These patent-pending electric fans not only produce greater airflow， but are also more efficient， and quieter than traditional S-blade and straight-blade designs. Designed using advance software and tested in a wind tunnel to verify increased airflow and improved efficiency， Flex-Wave fans move up to 20 percent more airflow than Flex-A-Lite Trimline fans， and up to 25 percent more airflow than the comparable electric fans on the market. With a new look， a selection of sizes available， and several aerodynamic advantages， Flex-A-Lite Flex-Wave electric fans are ready to cool your high-horsepower applications.Advantages include:* The leading edge of the fan blade is no longer a single， solid line. The sine-wave design creates leading edges that cut through the air first. This starts movement in the air around the blade with greater efficiency.* The wave surface of the blades creates channels for the air to move along， producing more airflow and reducing energy losses.* The wave surface forms a winglet at the tip of the blade， further increasing efficiency by reducing air vortices.* The trailing edge of the fan blade also has variations， which reduces wind noise.