Need replacement part number

A quick learner from Monroe NY says:
Could you tell me which balance replacement part number I need?
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Casey from SWISCO responded:


It's a bit hard to make out but I believe that your balance stamp includes 9#27, which would indicate that you'd need the 24-939 Andersen sash balance. Take a look and let us know if you need anything else. Thanks for posting! 

How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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