A:Answer Hello. We appreciate your interest in this microwave. We certainly understand needing a replacement, and appreciate your loyalty as a GE consumer! The model JEM31WA is no longer being manufactured. We regret any inconvenience this may cause, but can advise the model you asked this question on, PEM31DFWW, appears to have similar dimensions to the former; JEM31WA has dimensions of 11 3/16" H x 23 25/32" W x 12 55/64" D while PEM31DFWW has dimensions of 12 1/8" H x 24" W x 12 7/8" D. If those dimensions would work for you, PEM31DFWW can be mounted using an undercabinet hanging kit, JXA019K. Additional information about installing it, and any needed air clearances, are in the manual. We hope this microwave would be a good replacement option for you, but have various other microwaves that can be mounted under a cabinet as well. If you have further questions or need assistance, we are always happy to help. Best wishes! -Sarah@GEA