5/16in OD (7.95mm) Hard Line - 25 Foot Spool

The 5/16in OD (7.95mm) Hard Line – 25 Foot Spool is a precision-engineered tubing solution designed for automotive builders and mechanics. It is ideal for fuel system upgrades, brake line installations, and custom hydraulic applications where rigid, leak-free conduits are essential. This 25-foot spool provides ample length for complete system runs, minimizing the risk of mid-project shortages.

Constructed to handle the demands of pressurized systems, this hard line tubing is suitable for fuel delivery, brake fluid, and coolant circulation. Its design minimizes system compliance, which helps reduce fuel return losses and ensures optimal brake response over longer runs. The material's integrity is crucial for preventing failure under thermal cycling and vibration, especially in tight engine compartments.

Professional mechanics and dedicated enthusiasts will benefit from the reliable performance of this hard line tubing. It is compatible with AN and SAE flare fittings, making it versatile for various applications. This product is particularly useful for street machines, race vehicles, and restoration projects that require modernization of factory fuel and brake systems.