Duct Fan 8" Diameter, 420 CFM, 37W

Duct Fans, An Efficient Way To Increase Air Circulation, Keep Room Temperatures Consistent, and Lower Heating and Cooling Costs. Metal Construction, Powerful No-Maintenance Motors and a One-Use Thermal Fuse Mean These Fans Will Be Up To the Task For Years. Straightforward Installation Into Any 120V System with Detailed Instructions, Templates, and Diagrams. Available In Many Sizes. A Great Way To Give Slow Vents a Boost. Conforms To UL Standard 507, Certified To CA Standard C22. 2 Number 113