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The PCWK22U1WBB is an appropriate replacement for your existing microwave. We do recommend also purchasing the built-in kit designed for the new model microwave to ensure proper installation. The new kits in black are the 27" - JX727DLBB and the 30" - JX7230DLBB. To determine which size you need, measure the overall width of your microwave including the trim on each side. The recommended cabinet cut9out dimensions are 16 3/4:H x 251/2"W. - Vikki@GEAppliances
Sorry, there was a problem. Please try again later.My unit that was replaced was a Whirlpool. The GE fit in the recess but the trim kit is designed for an exact fit that is given in the install instructions. If your existing cutout is not the same you will need some longer screws to install but I found no problem otherwise.
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