SUITABLE FOR 16MM OD RIGID TUBING: Perfectly fits 16mm OD sized rigid tubing for water cooling systems. DURABLE BRASS CONSTRUCTION: Ensures extended lifespan and resistance to wear and tear. HASSLE-FREE INSTALLATION: Designed for easy hand tightening, requiring no additional tools for assembly. PRECISION ENGINEERED 90-DEGREE ANGLE: Perfect for creating neat bends in your water cooling setup. OPTIMAL FLOW DESIGN: Promotes efficient coolant circulation for better cooling performance.