A:Answer Hi Barb- We certainly appreciate your loyalty! Microwave trim kits are not interchangeable. A trim kit consists of the trim frame, as well as an upper, lower, and rear duct that attaches to and encases the microwave inside the cabinet cut-out. It is important to only use the trim kit designed for that model. A comparable model is our GE Profile™ Series 2.2 Cu. Ft. Built-In Sensor Microwave Oven PEB7227SLSS. It is compatible with GE® Optional 30" Built-In Trim Kit JX7230SLSS. We suggest to view the Quick Specs for dimensions including cabinet cutouts: http://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=PEB7227SL_BL_R2_17.pdf - Contact us anytime. We are always eager to provide assistance! SUEatGEA