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. Recommended for use with: Phresh? & Black Ops Carbon Filters, Ideal-Air Ducting and Clamps, and Titan Controls? Fan Speed & Ventilation controllers. Extremely reliable, high performance operation.