FST Performance RPM500 - MultiFlow - Flo Max Fuel Filter SystemRPM500 Flo Max Fuel Filter System The RPM500 is a compact, high flow low restriction system that filters down to 3 microns, unheard of in the marine performance racing industry. Overall Compact Size: 8 tall x 3 wide x 5 deep Weighs: 45 oz Base Manifold: Black, Billet 6061 T6 aluminum base manifold. Not a casting. Mounting holes: 7 16 2. 25 inches center to center. Flow: 315 gallons per hour (1,800 1,900 lbs per hour) Filtering: 3 Micron FloMax media