3 Way & 4 Way Brass Tube Connector, Straight Elbow Hose Cable 6 8 10 12 14 16 19mm, Copper Barbed Connector, Union Adapter
https://www.vogueparade.com/shopping/EN/A17/2/1005001659536845/3-way-and-4-way-brass-tube-connector-straight-elbow-hose-cable-6-8-10-12-14-16-19mm-copper-barbed-connector-union-adapter//