If anyone is interested in filter comparison:
https://www.youtube.com/watch?v=YIcFgjEikUY
https://www.youtube.com/watch?v=8hvUNXv5Bg0
Like I posted earlier a lot of auto parts stores locally will have the oil filters cut apart so you can see what is inside. Frame is by far the poorest constructed filter I have ever seen. I guess they work to a degree, but if you are interested in quality they are not it.
In a by-pass filter application it is a little different, but Frame still uses poorer quality filter material and construction than just about anything out there.