The 6AN PTFE fuel line mostly used in EFI LS system and can be worked with petrol, diesel, oil, hydraulic fluid, pump gas, alcohol, E85, coolant, fuel. PTFE fuel line holds up a lot stronger to heat and extreme circumstances than the nylon braided fuel line. Not recommended installation in corrosive environment, 6AN braided fuel line’s service life will be influenced. The 6AN PTFE hose working temperature range: -76℉ to 446℉ (-60℃ to 230℃). Maximum Working Pressure(psi) : 3000psi. Bursting Pressure(psi) : 10000psi. PTFE tube fuel line length: 25Ft, Inner Diameter: 5/16″. Outside Diameter: 0.465inch. Please measure before purchase! 25Ft 6AN braided fuel injection line kit includes fuel PTFE tube and aluminum alloy fitting adapter: 6pcs 6AN PTFE straight hose end, 2pcs 6AN PTFE 45 Degree hose end, 2pcs 6AN to 1/4″NPT hose adapter fitting, 2pcs 6AN to 3/8″ hose adapter fitting, 1pc 6AN to 5/16″ hose adapter fitting, 1 pc AN6 to 3/8″quick disconnect male. The injection fuel line made of black nylon fiber braided outer cover, 304 stainless steel wire braided middle layer, and a PTFE synthetic inner line. Nylon and stainless steel braid for excellent flexibility and resistance to abrasion. Outer nylon braided has excellent inflaming and safer to use. A PTFE tube has less volumetric expansion than a rubber tube and is non age sensitive for an unlimited shelf life. Professional installation is highly recommended. SPELAB provide this product have 12-month warranty. We value your shopping experience and strive to provide quality product and service.