Broken window balance

A home owner from Corinth, TX says:
I have a 2830 block and tackle window balance that is broken. Photo Window 1 is opposite side of damaged balance. It is the correct configuration. Window 3 represents the broken side - as you can see the tube is broken and the "cap" is destroyed.

Window 2 is a replacement we purchased for the 2830 but arrived with no "caps". Photo Window 4 and Window 5 are close-up images of the ends of the new balance.

Please research your inventory and hopefully find the correct replacement and all necessary parts.
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Thanks for contacting us. I'm afraid I cannot quite make out what Series balance it is you have. The stamp only tells us how strong the spring is. Capitol often uses our Series 370 channel balance, but you will need to carefully look it over and see how well it matches up. Without the end "caps," we cannot be 100% sure that this balance is what you have.
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