The rooftop shroud of my two speed Kool-O-Matic vent fan is disintegrating on my 1995 U300. I see the Kool-O-Matic Company went out of business in 2006 but was wondering if any of our members had found an alternative that will fit without having to replace the entire unit. My fan, and controls, are still working fine.<br/><br/>Thanks,<br/><br/>Jon