XtremepowerUS 8" Inline Duct Fan 770 CFM Air flow: 770cfm Speed: 2400rpm Frequency: 60Hz watt:193w Quiet fan with decibel Rating at 56 dB It is an energy efficient way help circulate heated or cooled air around a room This duct booster fan is designed to be installed in almost any position in your home or office duct work Net weight: 11lbs