The spring in my channel balance seems to have broken the pulley block at the top of the channel. I'm having trouble finding anything similar in your listings. This is for a single-hung, tilt-out window. There's a cord that runs from the top of the window frame to the channel balance. The long metal piece is stamped 36B. The window is labeled BLS6 - Builders FirstSource - Northeast. The last photo I uploaded has the full details of the label, with all the codes on it.
Thanks in advance,
