Brass Splicer Barb Pipe Fitting 4mm 6mm 8mm 10mm 12mm 19mm 16mm 25mm Tail Pneumatic Air Water Hose Connector Coupler Adapter
https://www.vogueparade.com/shopping/EN/200282142/1/1005003458514841/brass-splicer-barb-pipe-fitting-4mm-6mm-8mm-10mm-12mm-19mm-16mm-25mm-tail-pneumatic-air-water-hose-connector-coupler-adapter//