First I would like to thank Appliance Parts Pros for their quick service. I had to replace the top part of the microwave. that hides the filter and case. It is attached by 2 Philips head screws, (which did not come with the replacement part.) The most time spent on this project was getting the step ladder up from the cellar so I could reach the holes to screw in the screws Since I had that cover off I replaced the Filter.