The high capacity U-Fuel series filtration system offers the highest quality, particulate, and water absorbing filtering for gasoline, diesel, 100LL avgas, and bio-fuels. As fuel is filtered through the dual cartridge system, the micron rating becomes progressively smaller. The first filter is 10 micron water absorbing media which eliminates any large particulates and water; the second filter is a progressive micron water absorbing media which eliminates particulates as small as 2 microns and serves as a final line of defense to prevent water passage.