Product review (5 stars): good price. I had to cut it a bit ...
I had purchased this because my microwave was sparking and a little flame even started! So I researched the problem and found I needed a new waveguide cover because the current one was soaked in grease. I found this on amazon, good price. I had to cut it a bit to fit but was very easy to do.  I'm so happy I didn't have to replace my microwave. Very simple and cost effective fix! Microwave works perfectly again!