Window balance E 28 9#27 8 85

A home owner from New Jersey says:
I need to get a balance replacement and need to know which item to purchase/ The numbers/markings i can see on the existing Anderson Window balance is " E 28 9#27 8 85 "
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Bob from SWISCO responded:

Thanks for writing in. See our 24-939. This is meant to replace old Andersen balances that have the stamp 9#27, or 927. Let me know if you have further questions. 

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