Anderson window balance replacement

A professional from Point pleasant NJ says:
May 24, 2021
Hello,I am looking for balances for an Anderson Narrowline window 3046 from 1983,I did take out a balance and got some numbers off of it,they were very hard to see,but this is what I wrote down E 54 9#27 5 83 . Also had 11600-2 stamped on it.Would you be able to tell me what parts I need .I would like to replace both balances on two of these type of windows,Thank you
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Paul from SWISCO responded:
May 27, 2021

Based on your descriptions, you can use our 24-939 Andersen window balance.
Andersen Sash Balance, 927, 931, 937, 939
Andersen Sash Balance, 927, 931, 937, 939
24-939
$54.20
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