The FBO filter assembly for refueling trucks comes in a 10- or 14-inch filter element. The FBO-10 assembly offers flow rates from 18 to 20 gpm; the FBO-14 offers rates from 25 to 30 gpm. They take pre-filter, filter/separator or water-absorbing elements. No tools are required to change elements. One person can remove the filter can, change the element, install a new O-ring and attach the filter body to the filter head—without splashing or spills.