11600-2 and D62 7#27 11 82 balance replacements

A quick learner from South Bend says:
Yes, I have a couple of sash balancers which are bad. They are marked 11600-2 and D62 7#27 11 82. Which replacement parts should I order. Thanks.
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Paul from SWISCO responded:
Based on your stamp of 7#27, I recommend our 24-737 Andersen sash balance.
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