Leakproof Seal: To ensure long-term leakage prevention and a consistent seal, the fuel line kit comes with 8 sealing rings that ensure a tight and trouble-free connection. Multiple Fittings Included: The braided fuel line features 5/16in inner diameter, 0.46in outer diameter, and a generous 25ft length; our fuel hose end fitting kit is equipped with 15 fittings, perfectly compatible with the 6AN swivel hose end. Exceptional Durability: Featuring a 3-layer construction, our braided fuel line boasts a strong burst pressure, with a maximum working pressure of 500 psi. It operates in temperatures ranging from -76°F to 446°F, ensuring reliability even in extreme conditions. Versatile Applications: Our fuel hose kit finds utility in various automotive fuel systems, including turbine cooler, transmission, oil return, and transmission cooler pipelines, making it ideal for fuel transportation services. Premium Materials: Crafted with a robust double-layered structure comprising outer nylon and middle stainless steel wire braid, tightly encasing a PTFE inner layer. This design relieves internal pressure, reduces wear, enhances flexibility and mechanical strength. Our 6an fuel line kit is designed for diesel, gasoline, transmission fluid, and E85.