Don't know if anyone is interested, but I was bored so I cut open this Napa Pro Select. This is their economy filter made by wix, aimed at service shops and such. Looks pretty well made, nothing special, but everything looks like it is put together well, like most Wix products. Not sure on the filter material, but it looks like some sort of paper. Cost was in the $2.xx range.
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[IMG]http://i293.photobucket.com/albums/mm75/jdblya/summer%20time/CIMG3163.jpg
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[IMG]http://i293.photobucket.com/albums/mm75/jdblya/summer%20time/CIMG3163.jpg