Quickly replace existing ventilation fans from the room-side with new EZLock tabs. EZFit offers a variety of features that make installation from the room-side a breeze.EZLock Tabs secure the fan directly to the ceiling drywall, eliminating joist or truss mounting EZConnect wiring connectors eliminate clumsy wire nuts EZDuct connector enables duct attachment from inside the housing, without going into the attic EZHold pre-installed blower attachment screws mean no third hand is needed EZFits slim housing design fits in virtually all ceiling spaces 80 CFM and a quiet 1.1 Sones UL Listed for use over bathtubs and showers when connected to a GFCI protected branch circuit Patent-pending designHousing: 12L x 10-1 2W x 5H Grille: 14-1 2L x 13W Duct Connector: 4 oval or 3 round Ceiling Installation: Yes CFM 0.10: 80 ENERGY STAR qualified: Yes Light Bulbs Included: No Rated Sones: 1.1 Mounting Style: Recessed Wall Installation: No