window part: channel balance replacement

Hello! I can't tell what balance this is, with the ends excluded, but I can shed some light on the code while you track down the balance attachments.

"26 3" is the relevant part of your number. "26" means that the length of the channel is 27" (yes, 27"). The "3" is an old spring code that has been changed to "30" nowadays: we offer a spring option on all of our 27" balances called "2630," and that would be the right option for you.

However, there are at least fourteen different balances that this might be. See if your balance is one of these here, and if not, send photos of the attachments.