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These straight flare adapters connect 3/8" pipe to straight -6 AN fittings. They are lightweight aluminum and feature a 37° sealing angle. Black finish will give your engine compartment the look you are after. Order your desired size.Precision machined to ensure precise thread engagement Lightweight aluminum fuel line hose connector-6 AN to 3/8" aluminum pipe adapter37° sealing angle guarantees a positive seal at maximum operating pressures Available in Black anodized finish for a custom look Fitting Thread Application Chart (GIF)