A:Answer Hi mpast- We certainly appreciate your loyalty! While all 30" over-the-range microwaves are approximately the same width, and are designed to fit into a 30" wide cabinet opening, when replacing an over-the-range microwave, the mounting bracket included with the new microwave should be used since the mounting bracket is specific to each model. The new screws, bolts, and exhaust adapter should also be used. Keep in touch! Sue