For racers and performance enthusiasts who want high quality plumbing that's lighter and easier to assemble than traditional braided steel hose, Russell ProClassic hose is the perfect choice. It features a lightweight nylon fiber outer braid with a CPE inner liner, and a maximum pressure rating of 350 psi. It is capable of handling nearly every plumbing task on your car and is safe to use with fuel, oil, or antifreeze.