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
Amazon.com : 10 Feet - 3/8" ID x 1/2" OD Clear Vinyl Tubing, Flexible PVC Plastic Tubing Hose, Lightweight Plastic Hose Pipe BPA Free and Non Toxic Clear Hose : Patio, Lawn & Garden
Amazon.com: DAVCO 1" ID - 10 ft Clear Vinyl Tubing with 2 Stainless Clamps, Low Pressure Flexible PVC Tube, Heavy Duty UV Chemical Resistant Lightweight Plastic Vinyl Hose, BPA Free and Non
Transparent Tube, Transparent Cooling Pipe, PVC Anti-Bending Durable Super Flexible for Computer Desktop(transparency) : Amazon.co.uk: Business, Industry & Science