window balancer for double hung, tilt, Vinyl Windows

A handy person from Hawaii says:
Do you carry these window balancers? I need several different strength springs. Your help is greatly appreciated.
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Jasmine from SWISCO responded:

Thanks for reaching out! Your balances look like they could be our Series 140 Coil Balance assembly. The one in this particular photo would be our part S140-8. You'll need to check the other windows to confirm that they need the same balance assemblies and you'll need to look for a stamp that will indicate the spring strengths needed for those coils.

Alternate image for S140-8
Alternate image for S140-8

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