The Ecores looked good to me at first, a canned version of the good looking cartridge filters that have accumulated a fair history of problem free performance. Then somebody posted a picture of one that looked different from both the cartridge elements, and the ecore website. They showed a soft, thin, white felt like material easily pealing away from the filter media. Nobody really challenged that picture aside from saying it wouldn't happen. An unused filter element has a hard, black, plastic like endcap firmly bonded to the media. Since they are not available in my numbers, I have not bought an Ecore my self. I would like to know what is going on.
I just cut a profile of a element end cap. It seems to have a textured plastic outer surface, and black plastic ridges of plastic rising about a 1/16'' to meet the filter media. I can't pull them apart with pliers. It is a very different structure of the traditional paper glued to a metal end cap. The 2 look different when pulled apart with the needle nose pliers.