A quick learner from Bloomington, IL says:
August 18, 2016
I need to find these window balances -- I am interested in four pairs. Maybe more, I will check on the other windows. This was for a system known as
Paul from SWISCO responded:
August 22, 2016
It's tough to say based on this picture, but you might have our Series 751 channel balance assembly. Carefully look it over and tell me what you think.