Not sure if anyone has ever used these little filters. They not only do the job but look nice and neat to boot. They are non servicable but cheap so you can replace them as necessary. Available from Advance Auto in the lawnmower section $2.99.
Out of 5 builds, and after the first tank is used, that's the only filter I use. Cleaner look. I supply one with any bike I build. I purchase them fron Advance Auto also. Can be bought online but more expensive.