I'm looking to replace these. Seems I need a set of 7 pound and a set of 5 pond. Looks like a two piece setup in each channel when I removed them. The sash part that moves and a top stop that was screwed in.
Casey from SWISCO responded:
November 17, 2022
Hello,
Take a look and compare the specifications of the S140-5 for sashes weighing between 9 and 10.99 lbs, as well as the S140-7 for sashes weighing between 13 and 14.99 lbs. Thanks for posting!