Exhaust Fan Discharge Direction Vertical Duct Diameter 4 in Duct Shape Round Housing Finish Painted Enamel Housing Material Steel Includes Backdraft Damper Exhaust Grille Maximum Airflow 119 cfm Exhaust Airflow @ 0.100 in SP 106 cfm Exhaust Airflow @ 0.000 in SP 119 cfm Maximum Noise Level 6.6 sones Noise Level @ 0.100 in SP @ 5 ft 6.4 sones Maximum Coverage Area 200 sq ft Number of Speeds 1 Overall Depth 9 in Overall Height 13 1/4 in Overall Width 13 1/4 in Phase 1