High Altitude Natural Gas Burner Orifice Kit – 2 Stage, Package Contains: (12) 55 Main Burner Orifices, (1) Installation Instructions, (1) Gas Conversion Label, (1) Nameplate Conversion Label; Weight: 1/2 Lb, Bag Dims:8″H X 14″W X 1/2″D, In Mfg Bag, Made in USA.








