Several years ago I used the ones from B&B Specialties. http://bennettbuilt.com/page5.htm
They worked fine and I had no problems. At some point I started filtering all of the fuel before it went into the plane's tank by using an automotive type fuel filter. At the same time I started using the clunks that came with the tanks. Using this method I have never had a stopped up carb screen. If totally clean filtered gasoline goes in, why do you need an in tank filter?

Ken