This 30" Built-In Microwave Spacer Kit, Stainless Steelshould Be Used To Allow For Flush Installation Into Your Cabinets. Designed For Use With Select 30" Microwaves. See Your Model'S Use And Care Manual To Ensure Compatibility. Applicable For Cutout Heights Between 19" - 19-13/16". Installing This Accessory Will Require Basic Hand Tools And Novice Repair Experience. You Must Unplug The Microwave Or Shut Off The House Circuit Breaker For The Appliance Before Installing This Part.