Dave Sr. from SWISCO responded:
August 3, 2017
Hey, Chuck. I'm not sure what the difference between the 400 and 100 series is, to be honest. We would like to see the hardware you have now to compare it. Can you send some photos?
With that being said, the 39-264 Andersen casement operator is used on newer windows, manufactured 1999 to the present. If you have an older window, manufactured between 1995 and 1998, you will need to use the 39-362 mounting adapter with a 39-264 operator. Hope that helps. |