Multiple window's Coil balancing broken. The original parts are show above. Only labels showed on the plastic part are: " Pat.No. 8,458,878" and "10". On the spring, there is a label: "10". "
The 10 lb Series 140 Quick-Tilt" seems like an option, but it only fits pocket size 9/16" x 1-1/4", but my window's pocket size is 13/16" x 1-1/4".
Thank you so much in advance for your time and help to help find out the part I need.
Have a wonderful Labor Day.
Anping
![IMG_2820](images/pictures/2023/09/696600.jpg)
![IMG_2821](images/pictures/2023/09/696602.jpg)
![IMG_2822](images/pictures/2023/09/696604.jpg)
![IMG_2828](images/pictures/2023/09/696606.jpg)