Andersen balance

A handy person from Hagerstown , Maryland says:
Hi, which balancer do I use?,1990, double hung, 31x31, thanks!
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Paul from SWISCO responded:
Hey there! If you have an Andersen 200 Series Narroline window and the visible glass is 28-7/16" wide x 27-15/16" high, you can use our 24-1033 box balance. Let me know if you have more questions.
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