Replacement channel balance

A quick learner from Antelope, CA says:
February 27, 2017
Hello there,
Through all the posts I have seen. None have covered the one I have. Several are close, and I would rather be safe than sorry. The ones I have are labeled 26 4 CALDWELL JL. I hope this helps to identify the right part.
Thank you so much any and all assistance that may be provided.

John,
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
March 3, 2017
Please start by looking at our S385-27 channel balance. This comes with the 19-005 top and 15-004 bottom, so as long as those match you should be okay. I'd also recommend our 2640 option.
27" Series 385 Channel Balance
27" Series 385 Channel Balance
S385-27
$10.55
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