Vortex Powerfan S-Line

To find out what separates the Vortex Powerfan S-Line from other fans, you must get inside it! The Vortex Powerfan S-Line fans feature double insulated walls to prevent condensation and reduce the noise level, an integrated back draft damper, a mounting bracket designed for a quick and easy installation, rubber duct connection gaskets ensuring airtight connections, and so much more! The Vortex legendary 10-year warranty backs the Powerfan S-Line fans.