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) In-line model has removable access panel and no insulationAmperage: 5.0 CFM: 1214 Collection: LoSone Duct Size: 8 x 12 Finish: Galvanized Steel Function: Utility Fan Heater Included: No Housing Depth: 18 Housing Length: 22 Housing Width: 18 Humidity Sensing: No Installation Type: In-Line Light Included: No Motion Sensing: No Sones: 6.7 UL Listed: Yes Voltage: 120 Watts: 468 Weight: 64.50