Phat Jetfan 4", 160cfmPrepare to be blown away by the new Jetfans by Phat! These powerful mixed-flow digital fans are 32-bit microprocessor-controlled and offer outstanding performance and value. Avai..

ValuLine 4" Centrifugal Inline Fan, 171cfm ValuLine centrifugal fans stand a class apart in technology. They have a fan wheel composed of a number of blades mounted around a hub, which turns on a sha..

Vortex Powerfan 4", 220cfm Vortex Powerfans VTX Series are high-performance, inline duct blowers constructed from quality steel with heavy duty attractive hammertone powdered coat finish. The ex..

Active Air 4" Inline Fan, 165 cfmActive Air In-Line Duct Fans offer innovation and performance at a great price. With a full line of fans to meet your needs.Features:-Quiet operation-Durable cera..

Hurricane Inline Fan 4 in 171 CFM 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 component..