FloMax 300 Fuel Filter System w/ 1/2NPT Ports

The FloMax 300 Fuel Filter System w/ 1/2NPT Ports is a high-capacity fuel filtration solution engineered for vehicles and equipment requiring reliable fuel purity and flow management. Designed by FST Performance, this canister-style fuel filter is ideal for truck owners, off-road enthusiasts, and fleet operators who demand superior fuel system protection. Whether you're running a diesel engine, performance gasoline engine, or managing fuel contamination in aged fuel tanks, this system prevents particulate matter from reaching critical injection and carburtion components.

Built with a stainless steel 4-micron filter element, the FloMax 300 traps fine sediment, rust, and water contamination while maintaining a flow rate of 300 gallons per hour—sufficient for most street and light performance applications. The aluminum housing features red anodized finish for corrosion resistance and durability in harsh underbody environments. Both inlet and outlet ports are equipped with 1/2-inch NPT female connections, allowing straightforward integration into existing fuel systems using standard hose fittings or hard-line adapters. The compact 5.3 x 4.3 x 6.7-inch profile and lightweight 1.6-pound construction make installation flexible for engine bays with space constraints.

Mechanics and fuel system specialists rely on the FloMax 300 for fuel filter replacement, system upgrades, and preventative maintenance on fuel-injected trucks, marine engines, and generator sets. The 1/2NPT ports accommodate both inlet and outlet configurations, supporting fuel pressures typical of carbureted and EFI applications up to moderate PSI ratings. Installation requires basic plumbing skills and standard hose clamps or compression fittings; inline mounting between the fuel tank and fuel pump or after the pump ensures consistent filtration throughout the entire fuel system lifecycle.