Andersen balance

A professional from Portsmouth nh says:
Please help identify the balance in the attached picture.
Thumbnail of the uploaded file named Resized_20231002_131344.jpeg
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Casey from SWISCO responded:

Hello,

It's a bit tough to make out your stamp but it looks like it may be 5#23. If so, you would need the 24-531 Andersen sash balance for your repair. Take a look and let us know if you have any questions. Thank you! 

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