Kit,Conversion,LP (DF,SRT)
  DF      Use Starting With Serial #18180000
          From #17000000 to #18180000 See 809806
          Prior to Serial #17000000 Contact Tech
          Support at 800-222-7820.
  NGDF    See 829533
  SRT     Use Starting With Serial #18180000
          From #17000000 to #18180000 See 809806
          Prior to Serial #17000000 SRT's Are Not
          Convertable.