Andersen double hung replacement sash balance

A quick learner from Bethlehem Ct says:
August 1, 2020
I extracted the sash balance. The part number is
E48 9#27 9 86. Can you advise what replacement part I need. I need two of them.
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Bob from SWISCO responded:
August 4, 2020

See our 24-939. This is meant to replace Andersen balances that include the stamp code 9#27, or 927.
A quick learner from Bethlehem Ct says:
August 4, 2020
Hi thanks do I need a different one for each side or does the same one work for both left and right side.
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Bob from SWISCO responded:
August 4, 2020

The 24-939 will work on both sides of the sash.
Andersen Sash Balance, 927, 931, 937, 939
Andersen Sash Balance, 927, 931, 937, 939
24-939
$54.20
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