Part#?

A quick learner from Leroy, MI says:
Hi. We have a need for a sash balance replacement. The only numbers I can see on it are
D21 8#31 884. Do those mean anything?

Thanks

Rich
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Casey from SWISCO responded:

Hello,

An 8#31 stamp is supported by our 24-837 Andersen sash balance. Take a look and please let us know if you need anything else. Thank you!

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