10#31 andersen sash balance replacement

A home owner from Missoui says:
Which sash balance will work as replacement of my old sash balance
Andersen 11600-17 BFS 10#31 12-86?
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Casey from SWISCO responded:

Hello. Our 24-1033 Andersen sash balance box will replace your balance marked with "10#31". Have a look and see what you think. 

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