Bathroom Fan Discharge Direction Horizontal Duct Diameter 6 in Duct Shape Round Housing Finish Galvanized Housing Material Steel Heater Without Heater Includes (2) Energy Star Qualified 18W GU24 Expandable Mounting Frame Mounting Location Ceiling Exhaust Airflow @ 0.100 in SP 110 cfm Maximum Noise Level 0.3 sones Noise Level @ 0.100 in SP @ 5 ft 0.3 sones Maximum Coverage Area 105 sq ft Number of Speeds Variable Overall Depth 10 1/2 in Overall Height 7 5/8 in