Two sash Balances from another window

A quick learner from Connecticut says:
I sent a photo of a sash balance From a bedroom window Saturday. Here are photos from another window with broken sash cords that need replacement. Thanks for your feedback.
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Tom from SWISCO responded:

Hello! It looks like your old part has a "6#31" stamp. With that in mind, I recommend our 24-637 Andersen brand balance.

Please let me know if you had any questions.

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