3/8in NPT Male Pipe Union Blue

The 3/8in NPT Male Pipe Union Blue from REDHORSE PERFORMANCE is a precision hydraulic and pneumatic fitting engineered for systems requiring reliable, leak-free connections in high-performance applications. This straight union adapter connects two 3/8 inch NPT male threads, making it ideal for custom plumbing, racing fuel systems, air suspension setups, and industrial hydraulic assemblies. Whether you're building or repairing a complex fluid transfer system, this fitting delivers the durability and compatibility professional technicians demand.

Constructed from aluminum and finished in blue anodized coating, this union fitting resists corrosion while maintaining a lightweight profile—critical for weight-sensitive racing and aerospace applications. The anodized surface provides enhanced durability against oxidation and UV exposure, extending service life in both indoor and outdoor environments. The straight-through design eliminates flow restrictions, ensuring optimal fluid dynamics while the NPT (National Pipe Taper) male threads guarantee secure sealing when paired with standard pipe thread sealants or tape, reducing pressure loss across the connection point.

This adapter benefits fuel system builders, hydraulic technicians, and performance enthusiasts who require OEM-grade components for custom plumbing projects. The compact 2.8 x 1.1 x 3.8 inch footprint and minimal 0.065 lb weight make installation straightforward in tight engine bays and confined spaces. Compatible with any system using 3/8 inch NPT male connections—including fuel rails, coolant lines, air suspension manifolds, and brake systems—this fitting ensures consistent thread compatibility and reliable performance under pressure.