Anderson sash balance ID

A home owner from USA says:
October 3, 2014
I have an Anderson sash balance with a snapped cord. Need a replacement. The numbers that are stamped on mine is as follows; EE 4 25 28 this is out of the garage. They are single glazed glass. Going by the glass size puts the window at a 28310. Do you carry the correct balance?
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Tom from SWISCO responded:
October 3, 2014
I recommend our 24-431, which can replace Andersen balance boxes stamped with 4 25.
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