Dave Sr. from SWISCO responded:
April 29, 2015
Thank you for your patience in this matter. I'm afraid we haven't been able to find a match for this roller. It is very strange. Do you think you could retrofit our 87-180 as a substitute? If not, is there any way I can see a few pictures of your roller removed from the window? Can you also give us some more dimensions? Maybe we can find something better then.
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