Remodeling Fan Pick-A-Flow CFM Discharge Direction Vertical Duct Diameter 4 in Duct Shape Round Housing Material Steel Includes Plastic Alignment Guides Retaining Clip Mounting Location Ceiling Exhaust Airflow @ 0.100 in SP 110 cfm Maximum Noise Level 2 sones Noise Level @ 0.100 in SP @ 5 ft 0.8 sones Number of Speeds 3 Overall Depth 5 5/8 in Overall Height 15 5/8 in Overall Width 13 in Lighted Without Light Phase 1