A:Answer Hi Connie - 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. Each microwave comes with the mounting hardware (mounting bracket, screws, exhaust adapter), top and rear templates, and installation instructions needed to make installation a simple process. This makes choosing a replacement microwave easy. NOTE: 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 (JVM1440BH04: Approximate Product Dimensions 29 7/8"W x 16 13/32"H x 15 1/4"D). Comparable models are GE® 1.7 Cu. Ft. Over-the-Range Microwave Oven
JVM6172DKBB (black)/JVM6172SKSS (stainless/gray) and GE® 1.6 Cu. Ft. Over-the-Range Microwave Oven
JVM3160DFBB (black)/JVM3160RFS (stainless/black). We certainly appreciate your loyalty! Keep in touch at GEAppliances.com - Enjoy -Sue