A handy person from traverse city Mi. 49684 says:
the #s on mine are


D82 8#31 11-78
User submitted a photo of a window balance.
Profile picture of Casey
Casey from SWISCO responded:
Thanks for contacting us. Based on your stamp, I would recommend our 24-837 . This can replace Andersen balance boxes stamped with "8#31."
How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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