This Range Hood Vent Transition Kit Connects The Range Hood To The Vent Duct And Is Meant For Y-Shaped Transition Configurations. This Kit Is An Accessory That Can Be Used Across Several Brands; Check To See If Your Model Number Is Compatible. Installing This Accessory Will Require Basic Hand Tools And Novice Repair Experience. Helpful Tip: For Optimum Performance Of Your Vent, Change The Filter At Least Once Per Year Or When A Loss Of Airflow Can Be Detected.