Amazon.com: TRONXY 6 Pcs PTFE Teflon Kit for 1.75 mm Filament, 3D Printer Extruder Accessories with 2 m PTFE Tubing 4 mm, PTFE Tube Cutter, PC4-M6 PC4-M10 Pneumatic Fittings, PTFE Tube Clamps :
SILITUBE SO 4mm x 1mm, Meterware, Silikonschlauch, Lebensmittelschlauch, Schlauch Lebensmittelecht, hitzebeständig, flexibel, transparent, weich : Amazon.de: Baumarkt
Amazon.com : Beckett Corporation 3/4 Inch by 20 Feet Corrugated Vinyl Tubing for Water Garden or Pond, UV Resistant, Black : Plastic Flex Tubing : Patio, Lawn & Garden
Luftfilter-Einlassschläuche, Universalauto-Auto 4mm 5 Meter-Silikon-Vakuumschlauch-Schlauch-Silikonschlauch(rot) : Amazon.de: Auto & Motorrad
Amazon.com: Hard Durable Clear Metric Polyurethane Tubing for Air and Water Applications - Inner Diameter 4 mm - Outer Diameter 6 mm - 100 ft : Industrial & Scientific
Vakuumschlauch 4mm, Qiilu Unterdruckschlauch, Auto 5 Meter Silikon Vakuumschlauch Schlauch Rohr Silikonschlauch Universal(Rot) : Amazon.de: Auto & Motorrad