Balancer need for old Aluminum window.

A contractor from San Francisco says:
February 2, 2023
Hello.


I need help to identify what kind of balancer are needed for those windows? The balancer in installed on top of the window with 2 clips attached to the hook on the sash with strings on both side. I am looking for the balance and the parts that's need to fix the windows. If those balancer no longer exist, is there a new balancer system will fit. Thank you
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Casey from SWISCO responded:
February 6, 2023

Hello,

I don't recognize this balance shoe at first glance but I'm going to have one of our senior experts take a look and see if they could recommend a replacement for you. We'll reach out as soon as more information is available. Thank you!
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Paul from SWISCO responded:
February 6, 2023

I believe you are showing an overhead balance that installs at the top of the window frame. Unfortunately, the balance manufacturer discontinued making this balance and there is no known replacement at this time. We apologize for the inconvenience. 
Balance End Bracket
Balance End Bracket
15-209
$9.70
Classifying Channel Balance Fittings
Classifying Channel Balance Fittings
GUIDE
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