Andersen sash balance ID

A quick learner from Irwin, PA says:
The following markings appear on the sash counterbalance of my Andersen double hung window. 11600-2 D10 7#27 3 80 Which of your sash counterbalance replacements would you recommend I order?
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Tom from SWISCO responded:
Good morning! I recommend our 24-737 Andersen sash balance, based on your stamp of "7#27."
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