Anderson Window Counter balance

A handy person from delaware says:
I need to replace a left and right counter balance for a Anderson window. I need help identifying the correct counter balance on your site. I cant seem to find one that matches the numbers I have.

Left: 11600-17 P81-12L 3-87

Right: 11600-17 P81-12R 3-87

Thanks,

Joel
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Paul from SWISCO responded:

Hi Joel,

For your Andersen balance stamped with P81-12L, you will need the 24-13L replacement. As for the P81-12R stamp, you'll need the 24-13R Andersen sash balance. Take a look and thanks for posting.

How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
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