I have Anderson 200 series narrowline double hung windows with the chord in the frame installed in 1986. I have screens with the closure snaps 3 to 4 inches from the bottom of the screen. Would like to know if the
59-250 spline and the
75-019 roller is what I need for rescreening.i am hoping this very rigid metal strip is the metal spline I keep reading about. Any information will be helpful.