SWISCO - The Replacement Hardware Authority

Caldwell channel balances

A handy person from Oregon says:
Need 3 pairs or channel balances. Lengths are 26, 26, and 32. I have what I think are pan am clips on one side of each window. I am unclear how these work and how to use them to install new channel balances.

Thanks,
Anne
User submitted photos of a window balance.
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Tom from SWISCO responded:
Hey, thanks for posting. I've narrowed this down to two possible channel balance Series: either our Series 380 or our Series 385 balances.

Now, as you can see, there is only one difference between these two Series, and that is their bottom shoe. The Series 380 uses the 15-005 while the Series 385 uses the 15-004. I can't quite tell what you have based on your pictures, though. Please carefully compare their dimensions to your own hardware and see which is a better match.
15-004 and 15-005
A handy person from Oregon says:
also, it asks about stamp options on the ordering page? What does this mean and how do I know if I need one?

thanks,
Anne
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Tom from SWISCO responded:
Hey, Anne. Every balance has an option. This determines what the strength of the spring is. Each balance page has a chart that lists the options we have and what their strengths are. Compare these options to the stamps already existing on your balances or, even better, the weight of your window sash.
A handy person from Oregon says:
Hello! So if the number on the balance says 31 4 I am looking for option 3140 on the ordering page?

Thanks,
Anne
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Tom from SWISCO responded:
I agree. I think that's the best way to go. However, you might want to weigh your window sash just to make sure.
A handy person from Oregon says:
What do the markings "KM" or "LM" on the balance indicate?

Thanks,
Anne
Profile picture of Tom
Tom from SWISCO responded:
It varies from balance to balance, but usually that kind of marking is a manufacturer tag.
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