10AN PTFE fuel line working Temperature ranges from -76℉ to 446℉ (-60℃ to 230℃). AN-10 Black Nylon PTFE Fuel Hose 20ft. Size: AN10 PTFE braided fuel line Length is 10/20feet. Application:Our PTFE Lined Hose can be compatible with most automotive fuels, lubricants, and coolants.