The Faber INLBKIT In-Line Blower Kit for Inca Pro Plus is used to connect your separately purchased In-line blower OR your current existing Remote Blower on your house to the Inca Pro Plus. The kit consists of a duct connection plate with a 10-In. round opening to attach ductwork to and a wiring box and cable to hook up your in-line / existing remote blower to the hood controls.