1/2 inch 3/4 inch 1 inch 180 Degree Free Rotation Hose Fittings Internal Thread Rotating PacifierInner Wire Joint
https://www.vogueparade.com/shopping/EN/A4/328/1005003562279112/12-inch-34-inch-1-inch-180-degree-free-rotation-hose-fittings-internal-thread-rotating-pacifierinner-wire-joint//