Channel Balance Help

A home owner from Michigan says:
June 8, 2020
I do not know the manufacturer of my windows and cannot find it labeled anywhere on them. I need to replace this window sash. In addition to picture above, it has a label of UB 23D. Thank you
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Bob from SWISCO responded:
June 11, 2020

Is the metal channel 23" long? If so, take a look at our S770-23. Carefully look over all the specifications listed to see if this matches what you need. You'd need a stamp option of 23D. 
23" Series 770 Balance
23" Series 770 Balance
S770-23
$12.32
How to replace a tilt-window channel balance.
How to replace a tilt-window channel balance.
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