FST Performance RPM350 - MultiFlow - Flo Max Fuel Filter SystemRPM350 FLO MAX Fuel Filter System The RPM350 is a compact, high flow low restriction system that filters down to 4 microns, unheard of in the performance racing industry. Overall Compact Size: 4 tall x 3 wide x 3 deep Weighs: 24 oz Base Manifold: Billet 6061 T6 aluminum base manifold, anodized clear (popular in the Street Rod market). Not a casting. Mounting holes: 7 16 2 inches center to center. Flow: 300 gallons per hour (1,800 1,875 lbs per hour)