Balance box needed.

Quick Learner from New Jersey
My 34 year old window needs a new balance box. Which number replacement should I use?
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2 Replies
Casey
Casey from SWISCO
SWISCO
Expert

Hello,

The 527 stamp shown on your original assembly indicates that you'll need the 24-531 Andersen sash balance for your repair. Take a look and thanks for posting! 

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