Dave Sr. from SWISCO responded:
July 13, 2010
Guardian is the manufacturer of the glass, not the window. I will need you to take out the roller, take a picture and send it to us.
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Casey from SWISCO responded:
July 15, 2010
Take a look at SWISCO product code 87-177, this looks like what you have, compare the dimensions with your sample to confirm.
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