Pictured is the part that I pulled out of my window frame. I believe it should be one piece, but was broken.
On one side of the metal coil it reads 640 and on the other side it reads 540. I need both left and right for a number of windows.
Thank you,
Matt
Casey from SWISCO responded:
February 23, 2021
Hello,
Take a look at our 15-180 pivot shoe that uses the Series 190 coil springs. Look over the S190-640 and related items to replace any damaged parts of your coil balance assembly. Thank you!