The ABCs of Filter Kits
Most manufacturers recommend a 10-micron "spin-on" filter to best deal with E10 fuel. Working through your engine manufacturer will help to match the proper filter to the fuel system, or you can buy a filter kit from reputable manufacturers such as Racor, Sierra, Moeller, Mallory or Tempo. These kits generally include the filter element, a collection bowl (clear plastic for outboards, aluminum for inboards) and a mounting bracket or head unit made of aluminum or stainless steel. Some kits may include the brass or stainless steel threaded fittings for the hose barb.