Replacement sash balance

Home Owner from 21111
Hello! My bet is on 24-939, but I have no one to bet against. I'm sure identifying a replacement part will be easier than removing the painted-in head jamb liner. Thanks for the help - hope all are staying safe and sane.

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Tom
Tom from SWISCO
SWISCO
Expert

I wouldn't bet against that, you're completely right. The 24-939 can replace all Andersen balance boxes stamped with "931."

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