Sash balance

A quick learner from Manchester nj says:
Please tell me exactly what and how to order both
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
Can you confirm if the stamp on the flange reads "623?" If so, I recommend our 24-637 Andersen sash balance.
How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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Andersen's Narroline Sash Balances
Andersen's Narroline Sash Balances
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