Brass Hose Fitting 6/8/10/12/14/16/19/25mm Barb Tail 1/2" 3/4" BSP Male Female Thread Copper Connector Coupler Brass Fittings
https://www.vogueparade.com/shopping/EN/200282142/1/1005003708581707/brass-hose-fitting-68101214161925mm-barb-tail-12-34-bsp-male-female-thread-copper-connector-coupler-brass-fittings//