This Universal Manufacturer-Approved High-Altitude Natural Gas (Ng) Conversion Kit Is For Ranges And Includes Lp Orifices To Adjust The Cooktop Burners For Operation In Elevations Above 6.560'. 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.