6AN Black 30 Micron Reusable Fuel Filter Inline EFI Pump Tank Hose Fitting. 6AN Inline Billet Fuel Filter 30 Micron Universal High Flow. The thread size of 6AN: 9/16-18 UNF. Universal fit. The fittings are made of lightweight aluminum alloy 6061-T6 material for strong strength and good durability.
