American Volt Dual 10" Inch Electric Radiator Cooling Fans 1/2" 3/8" Fan Ground Thermostat Kit Dual 10 inch reversible 12 volt electric cooling fans. 900 CFM rating per fan, 1800 CFM per dual fan kit. Dimensions: 11.5" x 10.75" x 2.5" thickness at center, 1.5" at edge. Configured as air pullers out of the box. Blade and wiring can be reversed to make the fans air pushers.