Flare Union Black -3

The ALLSTAR PERFORMANCE Flare Union Black -3 (ALL 50090) is a precision aluminum adapter fitting engineered for high-pressure hydraulic and pneumatic fluid line systems. This straight-through adapter connects two 3 AN male ports, providing leak-free coupling in racing engines, performance brake systems, fuel delivery networks, and custom fabrication applications where reliability under extreme conditions is non-negotiable.

Constructed from aerospace-grade aluminum and finished in black anodized coating, this fitting resists corrosion, oxidation, and thermal degradation in both high-temperature engine bays and moisture-rich environments. The male-to-male 3 AN thread configuration ensures compatibility with standard -3 (3/16-inch) hose assemblies and port systems. Black anodized finish provides both protective durability and professional appearance on visible installations. At just 0.03 lbs and compact dimensions (3.5 x 0.65 x 4.55 inches), this adapter installs in tight spaces without adding significant weight or complexity to custom systems.

This fitting serves fabricators, engine builders, hot rod enthusiasts, and performance shops who demand adapter solutions that maintain system integrity under pressure cycling and thermal stress. Whether routing fuel lines in a turbocharged application, integrating custom coolant paths, or connecting auxiliary brake circuits, the Flare Union Black -3 delivers the precision fitment and material quality expected from ALLSTAR PERFORMANCE's catalog of motorsports-grade components.

ALLSTAR PERFORMANCE has established itself as a trusted source for race-proven fittings and adapters across street and strip applications, where system failure is not an option. This adapter's straightforward design, verified AN thread compatibility, and anodized aluminum construction make it a reliable choice for builders who rely on OEM-equivalent component quality for their custom fuel, coolant, and brake modifications.