The lower the micron rating, the finer the filtration. Lower micron ratings should be considered when there is no additional downstream filtration. Follow your engine manufacturer's recommendation for fuel filter micron rating.
Moeller Clear Site Water Separating Fuel Filter System
The perfect solution for ethanol blended fuels. Ethanol
mixes more easily with water than with gasoline, increasing fuel tank condensation, fuel separation, and octane imbalance. Moellers Clear Site Filters help the process of water removal for better fuel system maintenance. ...