Replacement Balance

A home owner from VT says:
July 29, 2023
Good Morning,
I need to replace the balances on several windows in my home. I have removed the balances from one of the windows and am attaching a photo of it for your reference, review and comments.

The window measurements appear consistent with that of an Anderson Slimline 200 window 3842, with an overall unit dimension of 3'-9 5/8" x 4'-5 1/4". I am attaching a photo of the glass etching for convenience and reference.

Any chance that you can tell me what the correct replacement balance is?

Thank you in advance for your reply and comments.

Leo
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Bob from SWISCO responded:
July 30, 2023

Hey Leo. Check out the 24-1231. This is meant to replace old Andersen balances that have the stamp code 1227, or 12#27. Let me know if you have further questions. 
Andersen Sash Balance, 1226, 1227, 1231
Andersen Sash Balance, 1226, 1227, 1231
24-1231
$54.20
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