Exhaust Fan Discharge Direction Horizontal and Vertical Duct Diameter 8 in Duct Shape Round Housing Finish Powder-Coated Housing Material Steel Heater Without Heater Includes Impeller Mounting Location Exterior Sidewall Maximum Airflow 378 cfm Exhaust Airflow @ 0.100 in SP 360 cfm Exhaust Airflow @ 0.000 in SP 378 cfm Number of Speeds Variable Overall Depth 6 in Overall Height 17 in Overall Width 14 1/4 in Lighted Without Light Phase 1