attached photos provide all that I know, windows might be Pella and are from 1984-ish. They are double pane, aluminum single hung and non-tilt. This is from 30 x 57 size window and I need the entire thing (with block and tackle) if I got that correct. There were too many options for me to figure it out. We also have smaller windows that are broken too. I don't have access to the balancer without removing the window, and I'd prefer not to do so. One is 22 x 57 and the other is 23 x 49, can you help with selecting?
thank you, Karen