Small Parts - TPC-063/10-24 -TPC-063/10 Polycarbonate Tubing, 1/2" ID x 5/8" OD x 1/16" Wall, Clear Color 24" L: Industrial Plastic Tubing: Amazon.com: Industrial & Scientific
4 Inch Diameter Clear PVC Schedule 40 Pipe [Pipe ID 4.0 inch, OD 4.5 inch] (Bluish tint), Choose Your Length (5 Inches to 8 feet) (Selected Length: 1 Foot)