springs are marked #4.0 35" track is 1.25 x.50
looking for assembled cartridges
need for 4 windows
Paul from SWISCO responded:
May 29, 2018
Thank you for your patience during this busy season. Based on your photos, I recommend our 15-199 pivot shoe and S65-4 3/8" wide coil. You may also want our 15-205 spring cover.