Hi, attached is a photo of the balancer in my window. The windows are approximately 20 years old and as far as I know, have never been replaced. Not surprisingly, the windows are VERY difficult to open and close. I am trying to assess if replacing the balancers will improve the performance.
Here is a photo of the balancer. This particular window is 74-75 inches tall.
I'm looking for you to tell me which model I should order for replacement.
Thank you.
Rich