DERPIPE fuel line meet and exceed SAE 30R7. They can application provides a flexible connection between the rigid fuel distribution line and the engine. Also for use in evaporative emission control systems and as a vent line.It provides superior service and remains flexible and resistant to the oil, grease, ozone and under-the-hood temperatures generated by today's automotive engines.Resist the temptation to use cheap worm gear clamps. They will damage the outer layer of the hose and do not handle the line pressure in the fuel injection system.