Racor genuine Aquabloc marine filter media is engineered to repel water and remove solid contaminants before they can damage precision engine components. Racor Aquabloc elements are available in different lengths for various flow rates and color-coded 2, 10 and 30 micron. The lower the micron rating, the finer the filtration. Lower micron ratings should be considered when there is no additional downstream filtration. Ultimately, the micron rating preferred will be a function of fuel quality, operating climates and maintenance schedules. This filter has a 180 GPH (681 LPH) flow rate and is a 2 micron. Replacement filter for the 1000 ma Turbine filter system.