Anderson window balance

Quick Learner from Butler PA
I have an Andersen wood window that needs a right side balance. The only numbers I see on it are, C29 6#31 4-86

Can you tell me which balance I need? Thanks
2 Replies
Tom
Tom from SWISCO
SWISCO
Expert
Welcome to SWISCO.com! For an Andersen balance marked "6#31", we recommend our 24-637. If you'd like to be certain, you can send us a photo of the balance box markings.
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