This is high-pressure fuel line compliant with SAE 30R9 / DIN 73379 with a 7.5mm ID, 13.5mm OD, suitable for replacement on all Fiat and Lancia Fuel Injection applications. 145psi working pressure with 700psi burst rating.
This is the exact diameter used by Fiat and Lancia for all of the barbed connections to the fuel rail, as well as connections from the filter to the hard supply line, and the return line hoses after the pressure regulator. Use this hose to maintain the stock "collar-lock" installation.
Use of incorrectly sized/graded hose, or worm-gear clamps can have dangerous consequences. Priced PER FOOT.