Redhorse Performance 4151 Series RHP inline street fuel filters feature CNC-machined aluminum bodies with a 100 micron pleated stainless steel mesh screen element. They're available in a -6 AN and a -8 AN size with flares built into the bodies, so additional adapters are not required. Hand-polished bodies are anodized (choice of colors) for protection and appearance. Filters are rated to flow 130 gallons per hour at 75 psi for both sizes.