Teling P Redwood City , CA June 12, 2017 Changing microwave vent installation from internal venting to roof venting at the bungalow we just purchased Purchased the parts (damper) needed from Appliance Parts Pro and had help to create venting through roof. I am pleased with Appliance Parts Pro's online ordering feature that ensuring the parts were the correct parts for the model of our microwave. 3 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes