9#27 sash balance

A handy person from Massachusetts says:
April 11, 2014
Need to replace one set of balances numbered E54 9#27 6 83
Which do I order and will need instruction on how to remove the sash to attach the sash cord. I do not want to destroy the window frame.

thanks
Roger
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Paul from SWISCO responded:
April 14, 2014
Check out our 24-939. This can be used to replace Andersen balances with the stamp 9#27. As for how to install it, see the video below.
Andersen Sash Balance, 927, 931, 937, 939
Andersen Sash Balance, 927, 931, 937, 939
24-939
$54.20
How to replace an Andersen Window Balance
How to replace an Andersen Window Balance
VIDEO
WATCH >
Andersen's Narroline Sash Balances
Andersen's Narroline Sash Balances
GUIDE
READ >
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