Ceiling Ventilator, Discharge Direction Horizontal and Vertical, Duct Shape Rectangular, Housing Finish Galvanized, Housing Material Steel, Heater Without Heater, Includes Backdraft Damper, Mounting Brackets, Mounting Location Ceiling, Maximum Airflow 1,455 cfm, Exhaust Airflow @ 0.100 in SP 1,414 cfm, Exhaust Airflow @ 0.000 in SP 1,455 cfm, Maximum Noise Level 9.7 sones, Noise Level @ 0.100 in SP @ 5 ft 9.7 sones, Maximum Coverage Area 1,300 sq ft, Number of Speeds 1, Overall Depth 23 3/4 in