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 441 cfm Exhaust Airflow @ 0.200 in SP 380 cfm Exhaust Airflow @ 0.250 in SP 364 cfm Noise Level @ 0.100 in SP @ 5 ft 1.5 sones Fan Wattage 135 W Frequency 60 Hz Full Load Current 1.87 A Housing Material Steel Motor Output Power 25 4/5 W Motor Type Shaded Pole