Swivel Union Female -3 to Female -3

The Swivel Union Female -3 to Female -3 from ALLSTAR PERFORMANCE is a precision hydraulic and pneumatic adapter fitting engineered for professional mechanics, fabricators, and motorsports technicians who demand reliable fluid transfer connections. This aluminum swivel union allows seamless integration between two female -3 AN ports, eliminating the need for separate male adapters and reducing leak points in complex plumbing systems. Ideal for custom cooling lines, fuel systems, and air suspension setups, this fitting addresses the real-world challenge of connecting dual female ports while maintaining full rotational freedom.

Constructed from black anodized aluminum, the Swivel Union Female -3 to Female -3 combines durability with corrosion resistance, critical for underhood and outdoor applications. The swivel design permits 360-degree rotation at each connection point, eliminating stress on adjacent fittings and hoses while simplifying installation in tight engine bays or frame areas. The -3 AN (dash-3) size—equivalent to a 3/16-inch diameter port—handles moderate flow rates typical of auxiliary cooling circuits, power steering systems, and pneumatic brake lines. Anodized aluminum construction resists oxidation while remaining lightweight, making it ideal for both street and competition vehicles.

Users benefit most when retrofitting vintage hot rods, building custom race cars, or assembling modular cooling and fuel systems where pre-assembled male/female combinations are unavailable or unsuitable. The swivel design is especially valuable in confined spaces where hose routing requires flexibility without kinking or crimping. Mechanics and fabricators appreciate the reduced assembly time and the elimination of adapter stacking, which reduces overall system height and improves reliability. Installation is straightforward—simply thread the female AN ports into your existing line couplers, and the full rotation capability ensures stress-free final positioning.