Need to replace both Left and Right Sash Balancers

A handy person from North Conway NH says:
May 26, 2018
Unit on Left is marked 11600-17 and BF7:10#31 9-86
Unit on Right (unshown) is not marked
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Tom from SWISCO responded:
May 30, 2018

24-1033 is a left- and right-handed Andersen replacement operator. It should work on both sides to replace the 10#31 Andersen balance. Let me know if you run into any other codes that you need to look up!
Andersen Sash Balance, 1027, 1031, 1033
Andersen Sash Balance, 1027, 1031, 1033
24-1033
$54.20
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