Dec one, 2010 #13 This is a question with the KPS88 fans. I have usually (since the late 80s) made use of the PS85. I would want to stage to anything new (it's been a long research way too and pushed by grommet availability, normal use etc) and am contemplating https://wilson8846666.pages10.com/not-known-facts-about-wilson88-62236371