SWISCO - The Replacement Hardware Authority

Andersen Window balance box ID numbers

A quick learner from Paramus, NJ says:
I would like to order balance boxes for two Andersen double hung windows and would like to know the correlating part numbers. The numbers are:

1) J85 5#23 4-83

2) D31 8#31 3-85

Thank you.
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Paul from SWISCO responded:
Our 24-531 can replace balances stamped with 5#23, while our 24-837 can replace balances marked with 8#31.
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