The Whirlpool W11129407 Range Downdraft Vent Transition Kit used to connect the range’s downdraft ventilation outlet to the appropriate ductwork for effective air movement. This replacement transition kit is designed for compatible Whirlpool range models and provides the necessary connection between the appliance and ventilation duct system. It works by creating a properly aligned pas... https://www.hnkparts.com/scroll-fan