A:Answer Hey there, and thank you for reaching out to us. We appreciate your interest in using a trim kit to create a built-in look. Unfortunately, the model number you listed is specifically a countertop microwave; it is not compatible as a built-in. We regret any inconvenience this may cause, and can advise we do have multiple microwave options that can be converted to built-in with a trim kit;
PEM31SFSS is just one example of our built-in options. The dimensions of this trim kit are 16-1/2" H x 29-7/8" W, but please note that, depending on what microwave you choose, this trim kit may not be compatible. Trim kits are model specific, though this one would fit PEM31SFSS. If you have any other concerns or questions, we are always glad to help. All the best! -Sarah@GEA
