Dave Sr. from SWISCO responded:
March 25, 2015
Take a look at our 81-279. That has a housing thickness of 3/4", which could be the width you need. As for the holes on the top, the most important hole is the one with the machine thread. This is used to attach the roller housing to the patio glass door frame. The distance from the edge of the roller housing to the center of the hole is 1-3/8". I'm not sure why there are so many extra holes in the housing, to be honest, but as long as the top threaded hole and the two holes on the end match up to yours you should be okay. Just check the thickness of the housing with your housing.
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