A:Answer Hey there, and thanks so much for your loyalty as a GE Appliances consumer! We truly appreciate you wanting a new microwave of ours to replace your older model. Unfortunately, your cutout would be a little small for our current models and trim kits; we regret any inconvenience that may cause. But if you’re able to arrange for a minor modification to the width of the cutout, the model you asked this question on (PEB7227DLBB) may indeed be a good fit for you. It is compatible with trim kits JX7227DLBB and JX7230DLBB. The trim kits differ in their external dimensions (JX7227DLBB is 26 ¾” W and JX7230DLBB is 29 ¾” W) but inside the cutout space both would need dimensions of 16 ¾” H, 25 ½” W and a minimum depth of 19 ½” or 22”. Though your cutout height is larger than what is needed, the height dimensions of the trim piece would cover the opening if installed correctly. We hope this information helps! If you have any other questions or concerns, we are happy to offer assistance any time, here or over social media. Thanks for being part of our GE Appliances family! -Sarah@GEA