This is a Show Polished Red 08 an fuel inlet line kit for Holley Dual Feed 4150 series carburetors with 7/8"-20 bowl inlet fittings and 9 & 5/16" center to center distance. This inlet line is equipped with steel braided hose with a 1/8" npt pressure port in the tee fitting just in case you want to install a gauge to check you fuel pressure. Crush washer bowl gaskets are included. The hose is 30r9 hose , compatible with ethanol, e85, race fuels, lubricants and coolants.