A:Answer This is a tricky question! It's tricky because after I purchased a trim kit that appeared as if it would work, was wrong!
What you need to do TO GET THE CORRECT ONE is look up the microwave that you actually have, from there look for the trim kit that will work with THAT microwave along with the width of the cabinet you want it in. It's much easier starting with your microwave going forward, rather than starting with the trim kit.
Thank goodness Best Buy was very understanding that I ordered the wrong trim kit and allowed me to exchange for the correct one.