Constant force window parts

A quick learner from USA says:
Good morning

I am looking for the below items for Windows that are constant force.

Please contact me with any questions.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Please see our 15-180 pivot shoe, 15-181 balance clip, and Series 190 coil spring. I think this hardware will match yours, but please look them over to confirm.
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