Heater Gas Conversion Kit; Type Gas Conversion Kit, Natural Gas to Liquid Propane; Used On F-100/B-100/FE-100/BE-100/F-125/B-125/FE-125/BE-125 Model Heater; Kit Includes Regulator Spring Kit, (6) Burner Orifice, Pilot Orifice, Ignition Controller Assembly, Yellow/Black Wire Assembly, Ignition Controller Mounting Bracket, (6) Screw, Propane Gas Disk, Conversion Tape, Wiring Diagram Label