This Microwave Trim Kit Is The Perfect Solution For Installing A Countertop Micowave In A Wall To Create A 27 Built-In Look. This Trim Kit Accepts A Jennair Jmc9158Bab Countertop Microwaves. Simply Install The Trim Kit In A 25 Wide X 16 7/8 High X 23 3/4 Deep Opening To Create 27 Built-In Look. All Parts. Hardware And Installation Instructions Are Included