Sound-absorbing acoustic insulation Painted white enamel steel grille Single, impact-resistant centrifugal blower wheel Can be ducted horizontally or vertically. In-line ducting available with separate adapter Use Broan Electronic Variable Speed Control to adjust blower speed and sound level (available separately)Amperage: 5.0 CFM: 1513 Collection: LoSone Duct Size: 8 x 12 Finish: White Function: Utility Fan Grille Length: 23-7 8 Grille Width: 19-7 8 Heater Included: No Housing Depth: 18 Housing Length: 22 Housing Width: 18 Humidity Sensing: No Installation Type: Ceiling Light Included: No Motion Sensing: No Sones: 8.4 UL Listed: Yes Voltage: 120 Wattage: 468 Weight: 64.30