Brass Splicer Pipe Fitting Straight/Tee/Y/Cross Type Hose Barb 4mm-19mm Copper Barbed Connector Joint Coupler Adapter
https://www.vogueparade.com/shopping/EN/200282142/1/1005003180095697/brass-splicer-pipe-fitting-straightteeycross-type-hose-barb-4mm-19mm-copper-barbed-connector-joint-coupler-adapter//