Hurricane Inline Fan 4" - 171 CFM for Intake and Exhaust Hurricane Inline Fans are commercial grade, high performance fans. The housings are made of steel with a durable powder coated finish. Made with quality UL components for quiet operation. Include mounting brackets with easy to follow instructions. Easily installs in minutes. These fans come with an 8 ft. 120 volt power cord. 5 year manufacturer warranty. Recommended for use with: Phresh® Carbon Filters, Ideal-Air™ Ducting and Clamps, and Titan Controls® Fan Speed & Ventilation controllers. Extremely reliable, high performance operation. CFM/AMP Information: Inline Fan 4" - 171 CFM / 1 AMP Inline Fan 6" - 435 CFM / 1 AMP Inline Fan 8" - 745 CFM / 1.7 AMPS Inline Fan 10" - 780 CFM / 2.1 AMPS Inline Fan 12" - 1060 CFM / 2.5 AMPS