Tefba is the one I use, but I didnt pay $65 for it, but I would if I had to do it all over again.
Ive explored making them on my own and ran into some roadblocks with that. It wasnt until I ran across a plastic welding system lately that I began to give this some more thought as Im sure I could do it for a good bit cheaper than that.
I was poised to buy the inventory from the only person selling them in the US at the time that was getting out of the business and thought I had good interest in the filter but then it all dried up when the rubber met the road.
The problem with the first link you posted is that it is an in-line filter and if it ever trapped enough stuff that it clogged up you would block coolant flow. Which is the beauty of the Tefba filter. You can not only clean it without loosing coolant, if it does clog up in the filter screen, the coolant still has a way to circulate.
