Amazon.com: uxcell PVC Opened Flame Retardant Corrugated Hose Tube 10mm Dia 8M Length Black : Industrial & Scientific
Amazon.com: Dracaena 1 meter/39.3 inch soft tube with PVC material, ID 3/8'' and OD 5/8''- PVC pipe soft tube for Computer water cooling systems (Transparent) : Electronics