BYKSKI use for Inside Diameter 13mm + Outside Diameter 19mm Hose / ID13mm + OD19mm Soft Tube / Hand Connector Fitting G1/4
https://www.vogueparade.com/shopping/EN/200001076/1/1005001795594995/bykski-use-for-inside-diameter-13mm-outside-diameter-19mm-hose-id13mm-od19mm-soft-tube-hand-connector-fitting-g14//