Window channel balances...

A handy person from san diego, ca says:
I am looking to purchase 4 of these balances. The number on the edge reads: 26 4 JL CALDWELL. The metal length is 27" even and have included the top and bottom photos for identification. Please provide your part number and I will purchase them ASAP.
User submitted photos of a window balance.
A handy person from san diego, ca says:
Forgot to mention it is 1/2 " wide. After more research on this site I believe I have #S380-27. Do you concur?
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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.
Comparison of 15-004 and 15-005
Comparison of 15-004 and 15-005
How to Replace a Channel Balance Attachment
How to Replace a Channel Balance Attachment
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Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
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