A:Answer Hi! Thanks for asking. All 30" over-the-range microwaves are approximately the same width, and are designed to fit into a 30" wide cabinet opening. Therefore, any of our 30" over-the-range models will work as a replacement for an existing 30" over-the-range model. - 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. With that said, we think you'll really like models PVM9179SKSS, PSA9120SPSS, PSA9240SPSS, PVM9179SRSS, JVM6175SKSS, JVM6175YKFS, and JNM3184RPSS. Hope this helps! All the best. -Michael@GEA