A quick learner from Fontana ,CA says:
April 21, 2016
I need a Channel balance 28 inch for an Alenco window.
Tom from SWISCO responded:
April 22, 2016
I'm afraid I cannot determine exactly what you have based on this picture. You definitely have a channel balance, I'm just not sure what kind.
I recommend that you look at our Channel Balance Home Page and follow the steps in order to find the Series that best matches what you have.