Grommet, Mtg Brkt (430, 561, 600/600-2 Series,
          700/700-2/700-3 Series, 648PRO)
   430    Use Starting With Serial #1931384.
          Prior to Serial #1931384 See 6150330.
   561    Use Starting With #M1897614/P1929859.
          Prior to Serial #M1897614/P1929859 See
          6150330.
600/600-2 Use Starting With #M1897614/P1929859.
          Prior to Serial #M1897614/P1929859 See
          6150330.
700/700-2 Use Regardless of Serial Number.
  700-3   Use Regardless of Serial Number.
  648PRO  Use Regardless of Serial Number.