This PTFE fuel hose is specifically designed for in tank usage where you have in tank fuel pumps. The hose is completely made of PTFE so it can handle all fuels available on the market without any problems. The flexible design makes the hose soft and flexible. Therefore, you can buy a longer hose than you need, so you can easily spin the hose to make it shorter when needed. 8mm fuel lines is standard in most cars. Specification: ID: 8mm inside Material: PTFE hose Length: 45cm Normal working pressure: 0-7bar (0-101 psi) Maximum pressure: 10bar (145 psi) Working temperature: -70 - 250 degrees Hose clamps must be used and is included