Nat Gas Converion - DF/SRT, SVCE
    DF    Use From Serial #17000000 to #18180000
          Starting With #18180000 See 9002724
          Prior to Serial #17000000 Units Cannot be Converted.

    SRT   Use From Serial #17000000 to #18180000
          Starting With #18180000 See 9002724
          Prior to Serial #17000000 Units Cannot be Converted.