Channel balances for Caldwell windows

A home owner from escondido, ca says:
I need 4 replacemnt window balancers. Single Sash, non-tilt.

Code on current balancer is 21-4-gp-Caldwell

Metal is 12 15/16 in length and 9/16 wide.

It appears similar to your S385-21.. How do I verify the plastic ends are correct?
A customer submitted photo of channel balance attachments.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting! Before we confirm the measurements of the attachments, could you please double check that 12-15/16" is the length of your metal channel? It isn't often that a channel would measure unevenly like that, and I just want to confirm whether or not we will have to make a special order.

As for the shoe, please refer to the following chart and match your bottom attachment to one of the four listed.
A SWISCO guide to identifying balance shoes.
A home owner from Escondido, CA says:
I mistyped the length of the metal channel, its 21 15/16 not 12 15/16

The attachment has wings and appears to match the 15-004

Thanks
Profile picture of Paul
Paul from SWISCO responded:
Thank you for the information. I think that our S385-22 Channel Balance will work for you. You would want that wit a 2140 stamp option, as well.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.