Holley Fuel Pressure Regulator - Dominator Billet - 4.5 to 9 psi - In-Line - 10 AN Female O-Ring Inlet - 10 AN Female O-Ring Outlet - 8 AN O-Ring Return - 1/8 in NPT Port - Bypass - Aluminum - Black / Clear Anodized - Diesel / E85 / Gas - Each-12-847--Notes: State Restrictions- Canada Restriction-NO -Emission Warnings--NO Truck Freight ---NO