Natural Gas High Altitude Kit, Used With A80/G802 Stage Furnaces, Elevation: 7,501-10,000Ft, Orifice Size: 0.055, Includes: (12)Main Burner Orifices, (1)Gas Conversion Sticker, (1)Nameplate Conversion Sticker, Total Weight: 2.3 oz, Packaged In Mfg Bags, Made In USA.