Orifice Holder - 15K, LP SVCE  (SRT,DF,CT15,GR)
   NOTE:  FOR FRENCH TOP SEE 802275
    SRT   Use Regardless of Serial Number
   DF/CT  Use Starting with Serial #17000000 and
          Between Serial #16050607 and #16050686.
          Prior to Serial #17000000 Except Between
          #16050607 and #16050686 See 802405
   CT15G  Uses 12K Burner See 808003