#12 Union Fitting Black

The #12 Union Fitting Black from FRAGOLA is a precision straight adapter engineered for high-pressure fluid transfer systems in automotive, industrial, and racing applications. This male-to-male AN connector serves as an essential component in custom hydraulic lines, fuel delivery systems, and pneumatic assemblies where reliable, leak-free connections are non-negotiable. Professionals and enthusiasts rely on union fittings like this one to extend, redirect, or join existing AN-threaded lines without compromising system integrity or requiring permanent welding.

Manufactured from aluminum and finished in durable black anodize, the #12 Union Fitting Black combines lightweight construction with corrosion resistance and visual consistency across modular systems. The straight-through geometry ensures minimal turbulence and pressure drop, critical when working with tight tolerances in racing fuel systems or hydraulic brake lines. Black anodized aluminum provides both functional protection against oxidation and a professional appearance that integrates seamlessly into custom engine bays and power steering setups. The 12 AN thread size—equivalent to -12 hose sizing—handles substantial flow rates while maintaining compact dimensions (2.1 x 1.3 x 4.1 inches) for tight installation spaces.

This fitting is ideal for custom builders, restoration shops, and performance tuners who demand modular connectivity in fuel systems, coolant loops, or brake circuits. Installation requires standard AN wrenches and compatible hose ends or hard lines with matching 12 AN male threads on both sides. The union design allows quick disconnect capability when maintenance or system reconfiguration is necessary, making it indispensable for race cars, hot rods, and specialty vehicles where reliability and serviceability are paramount. Always verify that all connected components carry equivalent pressure ratings and thread pitch before final assembly.