Hose Fitting #4 90 Deg Pro-Flow

The Fragola Hose Fitting #4 90 Degree Pro-Flow is a precision aluminum adapter designed for high-flow hydraulic and fuel line applications requiring reliable 90-degree directional routing. This 4 AN hose fitting connects 4 AN hose to 4 AN female ports, making it a critical component in fuel system assembly, hydraulic brake circuits, and custom plumbing installations where space constraints or system layout demand angled connections rather than straight fittings.

Manufactured from aluminum with blue and red anodized finish, this 90-degree fitting provides corrosion resistance and visual identification for different circuit types—a standard practice in performance and race vehicle applications. The Pro-Flow designation indicates optimized internal passages to minimize flow restriction at the bend. The compact dimensions (1.3 x 0.9 x 4 inches) and lightweight construction (0.04 lbs) make it suitable for tight engine bays, fuel cell compartments, and roll cage-mounted fuel systems where weight and space efficiency matter. Each fitting is sold individually, allowing builders to source exactly the quantity needed for their specific plumbing configuration.

This fitting is ideal for builders and technicians assembling performance fuel systems, custom hydraulic circuits, off-road recovery vehicles, and motorsport applications. The 4 AN size handles moderate to high flow rates commonly found in naturally aspirated and turbocharged engine fuel delivery systems. Fragola fittings are recognized in the automotive racing and hot rod community for consistent manufacturing standards and leak-free performance under pressure cycling. Whether restoring a classic muscle car, building a custom truck, or upgrading a performance street engine, this 90-degree adapter provides a reliable mechanical connection point with proven durability in demanding environments.