Features: Premium 3/8" brass union rotating connector features double rotate design with erosion resistant construction for leak proof reliability in gas and hydraulic systems. Crafted from strong strength brass with low magnetic permeability, this fitting ensures extended life , excellent heat resistance, and secure tube connection via integrated rubber gasket. Essential for plumbers, mechanical engineers, and industrial maintenance professional working with pressurized fluid transfer systems or gas line installations. Optimized for / equipment, refrigeration units, and pneumatic machinery requiring strong , rotation friendly brass fittings that withstand high temperature environments. The accuracy engineered 0.675" internal thread diameter ensures seamless compatibility with standard tubing, while the double rotate mechanism enables flexible alignment during complex piping configurations. Specifications: Component : brass Height: about 39.1mm/1.54inch Package Includes: 2xUnion Fittings note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.