I need correct replacement balance for double hung window .

A home owner from Kittanning pa says:
August 29, 2023
The current ones have no ID markings the measurement are :
6" long
2 15/16 " wide
3/4 " thick
The bottom window weight is 9lbs.
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Emily from SWISCO responded:
August 30, 2023

Thank you for reaching out to us! I'm afraid this isn't enough information for us to ID your hardware. We'd be happy to help but we'll need more information. Can you remove the balance from the window and show us some photos?
A home owner from Kittanning pa says:
September 1, 2023
Reference # D300920
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Emily from SWISCO responded:
September 1, 2023

Thanks for the photos! I see you have an Andersen sash balance. Can you show us some photos of the numbers that are stamped on it? That's the best way for us to ID it.
A home owner from Kittanning pa says:
September 1, 2023
That's my problem there are no markings or ID of any kind .
A home owner from Kittanning pa says:
September 1, 2023
Hello Lester there aren't any numbers or ID of any kind stamped on the balancer's both sides are blank . The windows don't even have the Andersen identification.
A home owner from Kittanning pa says:
September 1, 2023
Hello. Emily there no numbers or identification of any kind on the balances . If u can zoom in the pn the photo s I sent u can see the lack of information.
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Paul from SWISCO responded:
September 5, 2023

In that case, may we have the visible glass width and visible glass height of the sash? 
A home owner from Kittanning pa says:
September 5, 2023
Hi Paul per u r request The bottom widow glass is:
24 1/4 " wide
13 15/16" high
And the weight is 9 lbs
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Paul from SWISCO responded:
September 7, 2023

Thanks for getting back to us. From your visible glass size, you can use the 24-531 balance box. Take a look and see what you think.
Andersen Sash Balance, 519, 523, 525, 527, 531
Andersen Sash Balance, 519, 523, 525, 527, 531
24-531
$54.20
How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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