Caldwell Window Balance

A home owner from San Jose, CA says:
I am looking for a replacement half-inch non-tilting channel window balances. The markings on my say "24 5 CALDWELL IM".
I'm not sure of the following:
a) Which series I should select. (370, 371, 380)
b) What is the proper guide and shoe selection.

I would like to send you my current balance to examine.
Can you provide me a shipping address and a contact person's name?

Lawrence M.
Profile picture of Paul Sr.
Paul Sr. from SWISCO responded:
We prefer that you email us a picture instead of sending a sample. Send us a picture of your balance, please include a close up of both the top and the bottom of the balance.
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