This High Altitude Range Conversion Kit, Natural Gas Is Meant For Converting Single Cavity, Built In Ranges, And Includes Natural Gas Orifices To Adjust The Cooktop Burners For Operation In Elevations Above 5,000 Ft. Installing This Accessory Will Require Specialized Tools, Disassembly Of The Range And Prior Repair Experience. We Recommend That You Hire A Qualified Technician To Install This Kit. If Installing Yourself, Remember To Shut Off The Gas Supply To The Appliance Prior To Disconnecting The Electrical Power.