Amazon.com: 1" ID 1-1/4" OD Clear Vinyl Tubing – 5 Feet, 30 PSI, Flexible Plastic Tubing, BPA Free and Non-Toxic, Multipurpose Soft Tube Comes with 2 Hose Clamps : Industrial & Scientific
MECCANIXITY PVC Rigid Round Pipe 33.5mm ID 40mm OD 0.3 m Clear High Transparency for Water Pipe, Aquarium, Fish Tank : Amazon.ca: Tools & Home Improvement