Searching for channel balance for old Milgard windows

A home owner from Redwood City, CA says:
February 7, 2021

I need to replace one of the balances for my Milgard windows, installed around 2002. I measured them at 32", even though the stamp says 31. Channel width is 9/16".

From the photos, you can see that someone tried to jury-rig it, presumably after the string broke. It's missing one of the pulleys, so I'm unable to repair it.

Any help is appreciated! Thanks!

Dan

Thumbnail of the uploaded file named DWebb-Milgard1.jpg
Thumbnail of the uploaded file named DWebb-Milgard2.jpg
Profile picture of Bob
Bob from SWISCO responded:
February 10, 2021

Hey Dan. This might be our S765-32 tilt window channel balance, but I am not entirely sure. It would be best to compare to an undamaged balance to make sure the top screw clip and bottom hook match. If anything differs, I'd like to see pictures of an undamaged balance. Many thanks. 
32" Series 770 Balance
32" Series 770 Balance
S770-32
$13.67
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
VIDEO
WATCH >
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 3-4 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 (888) 991-1929 or at help@swisco.com.