Gemini Jamb Extensions
Jamb extensions are available for all Gemini windows in standard 4 9/16, 5 1/8, 5 9/16, 6 9/16, 7 or 8 1/16, as well as custom widths in either natural pine or white vinyl clad.
Brickmoulds
Two separate brickmoulds are available for use on either Gemini or Customline windows.