Originally Posted By: robo339
Lol its a simple case of someone wayyyy overthinking how a filter functions
Not "over" thinking... thinking flat wrong.
lots of little slits ("louvers") = same surface area as few bigger holes.
Taken to one extreme (big holes) you have E-core and people worry about the filter pushing through the holes for lack of support. Taken to the other extreme, you have fine wire mesh.
