Help with window balance

A quick learner from USA says:
Help with window balance
User submitted a photo of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Sure, we should be able to help. Your pivot shoe closely resembles our 15-180. Look it over and see if you agree. If so, I would recommend our Series 190 coil spring. As long as your shoe is the 15-180, then the Series 190 should work as a replacement spring.
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