I had problem with your form submission. This is a new discussion.
I need to replace block / tackle channel balance for vinyl single hung tilt window. Has 325r stamped on it plus BSI. It is 33 inches (w/o lock attachment). It is spring type. Pics attached. Believe it is called side install. If it helps, windows are 9 years old. Can you determine which of your replacements I need from pics? [] It looks very similar to your Series 795-33.
