Brass Hose Fitting 4mm 6mm 8mm 10mm 19mm Barb Tail 1/8" 1/4" 1/2" BSP Female Thread Copper Connector Joint Coupler Adapter
https://www.vogueparade.com/shopping/EN/200282142/1/1005003416760728/brass-hose-fitting-4mm-6mm-8mm-10mm-19mm-barb-tail-18-14-12-bsp-female-thread-copper-connector-joint-coupler-adapter//