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
Mardatt Professional PVC Pipe & Tube Cutter Tools Kit Including 3 Spare Blades, Glove for Cutting O.D. up to 1-5/8 inches Plastic PEX, PVC, and PPR Pipe, Ideal for Plumbers, Repairer - - Amazon.com