Fuel Filter, Filter Design In-Line, Nylon In-Line Fuel Filter, Height 8 1/8 in, Length 8 1/8 in, Width 2 in, Inlet 5/16 in or 3/8 in Universal, Outlet 5/16 in or 3/8 in Universal, Outside Dia. 2 in, Thread Size Not Applicable This inline fuel filter can help protect fuel system components from the damaging effects of contaminants such as water, fungus and bacteria, precipitates, particulates, and wax.