CertainTeed Tension Coil for Double Hung Window

A quick learner from Whittier, CA says:
So sorry for all the dirt and grime in the window casing... I am looking to replace the Tension Coils and their force balances as it appears to me that they broke, and the top sash of this particular window slides down and remains open. To close it, I have to hold it up and lock it.
User submitted photos of a coil balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for posting. Just by eyeballing this picture, your pivot shoe appears similar to our 15-192. Do you agree? If so, I think you might want to consider our Series 170 spring. Carefully compare the dimensions we show for this hardware to your own and see if you agree.
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