Dave Sr. from SWISCO responded:
November 25, 2014
Our 39-422 is a 2" extension, so that's one possibility. You can add them together if you want it to be longer. That said, I don't know if this will help you, distance wise. The extension will be coming off the operator in an upward direction. You have an aluminum awning window and that type of operator is the only one that works on that specific window. There may not be much you can do. It seems like a design flaw in the window.
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