Bathroom Fan Discharge Direction Horizontal and Vertical Duct Diameter 4 in Duct Shape Oval Round Housing Finish Galvanized Housing Material Steel Heater Without Heater Includes Duct Connector Metal Damper Mounting Location Ceiling Wall Exhaust Airflow @ 0.100 in SP 80 cfm Exhaust Airflow @ 0.000 in SP 104 cfm Maximum Noise Level 1 sones Noise Level @ 0.100 in SP @ 5 ft 1 sones Maximum Coverage Area 75 sq ft Number of Speeds 1 Overall Depth 10 1/2 in Overall Height 4 in