thanks for posting the vid BHoward. Never seen it before. So the fella at Steve White said the filter media is different between the black and white filters. Does anyone know the micron rating of these? I've search...maybe looking in the wrong places...but haven't found anything. It's been about 2-years since I cut apart a white and black filter but what I remember was there was a difference in the number and size of the filter inlet holes. It surprised me that the black filter had more open flow area than the white filter...that is if I did the math right .