Recessed Bathroom Ventilation Light Discharge Direction Horizontal and Vertical Duct Diameter 4 in Duct Shape Round Housing Finish Galvanized Housing Material Steel Heater Without Heater Includes Adjustable Mounting Brackets Mounting Location Ceiling Exhaust Airflow @ 0.100 in SP 80 cfm Maximum Noise Level 2 sones Noise Level @ 0.100 in SP @ 5 ft 2 sones Maximum Coverage Area 75 sq ft Number of Speeds 2 Overall Depth 12 3/4 in Overall Height 6 7/8 in Overall Width 8 1/4 in