16" and 22" channel balances

A home owner from Seattle says:
The springs are breaking from rust on many of my windows. I have 2 different sized windows.

1. Metal part is 22" long or 23" when the plastic parts are included.
2 Metla Part is 16" long or 17 when the plastic parts are included.
User submitted photos of a window balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Please look at our Series 385 and let me know if you think this would be a good match for your channel balances. When determining length, you do not include the plastic parts, so I would recommend our S385-22 and S385-16.
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