Ball Valve 4-12mm Hose Barb 1/8'' 1/2'' 1/4'' Male Thread Connector Joint Copper Pipe Fitting Coupler Adapter
https://www.vogueparade.com/shopping/EN/200282142/1/1005003594710494/ball-valve-4-12mm-hose-barb-18-12-14-male-thread-connector-joint-copper-pipe-fitting-coupler-adapter//