Plug 3/8 "smooth side 9,5 mm x 8,5 mm grooved side for 7 mm beer hose, 2,50 €
Wuzhou Double Plug Hose Connector Extender,garden Hose Coupling For Car Washing And Garden Hose Pipe Connection (12pcs, Green) | Fruugo DE
Tbest Bicycle hose connector olive and plug-in fitting hydraulic disc brake hose for AVID E5 ER XX X0 5 mm hose : Amazon.de: Sports & Outdoors
EU Type Socket+Plug Pneumatic Connector Hose Barb Coupler Adapter Air Compres'yg | eBay
Garden Hose Plug Set - Quick Connect, BSP 100 mm Spray Noz, Pack of 5 : Amazon.de: Garden
Yaavaw 10 Piece Garden Hose Connector Kit for Garden Hose Pipe Connectors (2 Double Plug Hose Connectors 6 Hose Quick Connectors 2 Tap Connector for Tap with Thread) : Amazon.de: Garden
Timubike Shower Hose, Foam Shower Hose With Copper Plug, Telescopic Spring Hose, Retractable Hose For Hand Shower, Toilet And Bidet(3m White) | Fruugo DE