In-Line Ceiling Exhaust Fan Discharge Direction Horizontal/Vertical Duct Diameter Not Applicable Duct Height 8 in Duct Width 8 in Duct Shape Square Nameplate Voltage 115V AC Exhaust Airflow @ 0.100 in SP 400 cfm Exhaust Airflow @ 0.200 in SP 390 cfm Exhaust Airflow @ 0.250 in SP 382 cfm Noise Level @ 0.100 in SP @ 5 ft 2 sones Fan Wattage 144 W Frequency 60 Hz Full Load Current 1.3 A Housing Material Steel Motor Output Power 161 W Motor Type Permanent Split Capacitor