300CC Reverse Osmosis RO Water System 1:3 Pure/Waste Water Flow Regulator Restrictor 1/4" OD Hose Quick Pipe Connector Fittings
https://www.vogueparade.com/shopping/EN/200282142/1/1005003711512021/300cc-reverse-osmosis-ro-water-system-13-purewaste-water-flow-regulator-restrictor-14-od-hose-quick-pipe-connector-fittings//