A:Answer Hi Alyssa - Yes, all 30" over-the-range microwaves are approximately the same width, and are designed to fit into a 30" wide cabinet opening. Each microwave comes with the mounting hardware (mounting bracket, screws, exhaust adapter), top and rear templates, and installation instructions. If venting outside, the hood exhaust has been designed to mate with
a standard 3 1/4" x 10" rectangular duct (not included). See page 6 of the Installation Guide: https://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=49-40675-4.PDF - Keep in touch! Sue