Brass Mini Shut Off Ball Valve 1/8" 1/4'' 3/8'' 1/2'' Female to Male BSP Threaded Air Water Oil Flow Control Plumbing Fitting
https://www.vogueparade.com/shopping/EN/200282142/1/33043611469/brass-mini-shut-off-ball-valve-18-14-38-12-female-to-male-bsp-threaded-air-water-oil-flow-control-plumbing-fitting//