A:AnswerHi Mikey, this above referenced trim kit is for a countertop microwave when being installed to appear like a built in. The KMBP107EBS is an actual Built In Microwave. You may want to reference the specs for this unit for more information. Here is the link https://bit.ly/2S6f1W8
A:AnswerHello JAS, we add the trim kit information to the Microwave Installation Instructions. For the best fit we would suggest you check your particular documentation. Or post again with the Microwave Model number and we would be happy to assist further.