Exhaust Fan, Discharge Direction Horizontal and Vertical, Duct Diameter 6 in, Duct Shape Round, Housing Finish Powder-Coated, Housing Material Steel, Heater Without Heater, Includes Speed Control Potentiometer, Mounting Location Exterior Sidewall, Maximum Airflow 410 cfm, Exhaust Airflow @ 0.100 in SP 409 cfm, Exhaust Airflow @ 0.000 in SP 410 cfm, Number of Speeds Variable, Overall Depth 8 in, Overall Height 17 in, Overall Width 14 1/4 in, Lighted Without Light, Phase 1