PVC Pressure Tube 50 mm (1 m). : Amazon.de: DIY & Tools
Amazon.com: Plastic Syringe with Tube – 500ml / 550ml Extra Large Syringe with Tubing and Tip Adapter – Safe and Individually Sealed - Ideal for Industrial Use, Science Labs, Watering, Glue Dispensing,Horse
Amazon.com: Cleartec 1.25in Sealed Bottom Round Containers 12.187in Long PETG SBT00190 (Qty 50) with PCC1.250 [PCC] 1-1/4" Clear Cap (Qty 50) : Industrial & Scientific