Andersen sash balance unit
A quick learner from Lancaster, PA says:
October 27, 2014
To whom it may concern I am looking to identify replacement balance units for my windows. The actual window is a double hung 36" Andersen window. I have attached several pictures of the balance unit I removed from one of the windows. Feel free to call me if you have any questions.
Paul from SWISCO responded:
October 29, 2014
I recommend our 24-637. This can replace Andersen balances stamped with 6#23.