SWISCO - The Replacement Hardware Authority

Need to replace 26 6 GW CMC 11 balance

A handy person from Lubbock, TX says:
Trying to identify this channel balance for replace/repair work.
Channel identifier: 26 6 GW CMC 11
Total length is 27"

Unsure how to figure out the spring weight/strength....weigh the window?
User submitted photos of a window balance.
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Tom from SWISCO responded:
Thanks for posting! Before I can offer an applicable replacement for this channel balance, I just need to know a bit more information about the bottom attachment. Please take a look at our 15-004 and 15-005 channel balance shoes, and note their depths. As you can see, they are 1-3/32" deep and 1" deep, respectively. Which one more closely matches your own bottom attachment?
A handy person from Lubbock, TX says:
They resemble the 15-005 channel balance shoes, that being 1" deep.
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Tom from SWISCO responded:
In that case, check out our S380-27 balance with a 2660 option. Let me know what you think.
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