Ein LEGO® Pneumatik-Schlauch 4mm Durchmesser (Blau 6.4cm): Amazon.de: Spielzeug
Amazon.com: Authentic Capricorn Bowden PTFE Tubing XS Series 1 Meter for 1.75mm Filament with PTFE Teflon Tube Cutter and 2X PC4-M6 Extruder Fitting and 2X PC4-M10 Hotend Fitting : Industrial & Scientific
T-piece – pneumatic connector – plug connection for air and water – quick connector – push in fitting – (14 mm hose connection) : Amazon.de: DIY & Tools
uxcell 10Pcs 6mm Dia 2 Way Straight Tube Hose Pneumatic Air Quick Fitting Push in Connector: Amazon.com: Industrial & Scientific