Replacement Window Balances 25DS jk 37

A purchasing agent from Boston Mass says:
I have a balance with the stamp on it reads-- 25DS jk 37.

The metal channel is -- 1/2" wide 26" long.
With the top shoe and bottom shoe, the total length is 27"

A customer submitted photo of channel balance attachments.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. before we can recommend an applicable replacement for your balance, can we just confirm the length of your bottom shoe? Please refer to this chart and let us know which example most closely resembles your own hardware. Thank you!
A SWISCO guide to identifying balance shoes.
A purchasing agent from Boston Mass says:
# 15-002 appears to look like the bottom shoe.
It is 1" wide X 1" High X 1/2" wide.
Please see attachment.
Profile picture of Paul
Paul from SWISCO responded:
Thank you. Can you please confirm the width of your shoe? Judging by its style, I think it might be closer to our 15-001. That 1/8" is vital.

If so, please take a look at our S390-26 channel balance with a 2540 stamp option.
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