Window Coil Balances Needed

A contractor says:
The window will not stay up keeps falling down
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Bob from SWISCO responded:

Thanks for writing in. Sounds like you need to replace your coil balance system. See our 15-180 Pivot Shoe. This is compatible with our Series 190 coil springs. Look for stamp codes on the coil springs to identify what spring weights you need. Let us know if you have any questions.

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