Jason C Silver Spring , MD April 17, 2020 Vent had broken off and exposed a very dirty filter from the previous owner. Simply purchased the two parts online. It was very easy to find. I didn't have the part or serial number, so I possibly got lucky, but I used a code on an instruction manual which led me to the part number. They arrived quickly, installed with two screws and was good to go! Thanks Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes