A:Answer Hi Carroll - 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 needed to make installation a simple process. This makes choosing a replacement microwave easy. PVM1870SM1SS: Approx. Product Dimensions (WxHxD) (in.) 29 7/8 in x 16 7/8 in x 15 1/4 in. / JVM3160RFSS: Approx. Product Dimensions (WxHxD) (in.)
29 7/8 in x 16 1/2 in x 15 1/4 in. We suggest to view the Quick Specs at the following link: https://products.geappliances.com/MarketingObjectRetrieval/Dispatcher?RequestType=PDF&Name=340169_jvm3160rf_c3.pdf - We certainly appreciate your loyalty! Sue