Andersen Window Replacement Sash Weights

A quick learner from Indiana says:
Please respond with the correct part numbers and whether there are different part numbers for left and right.
User submitted image of their window hardware.
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Paul from SWISCO responded:
Welcome to SWISCO.com. Your old #523 Andersen balance box is now replaced with our 24-531. The left and right balances will be the same. Let me know if you need more information.
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