Soler &amp; Palau PV-100X In-line Exhaust Fan<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>4"/100MM inline centrifugal duct fan-153 CFM</li><li>Safety tested by Underwriters Laboratories， Inc. and are UL and cUL Listed. ETL Listed</li><li>Permanently sealed， self lubricating precision ball bearings. Safety Thermal Overload Protection Cut-Out</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31dQZyASmGL.jpg" noproxy>