uxcell Black PVC Tube Wire Harness Tubing, 3/8-inch(10mm) ID 23ft Sleeve for Wire Sheathing Wire Protection: Amazon.com: Industrial & Scientific
Sealproof Unreinforced PVC Food Grade Clear Vinyl Tubing, 3/8-Inch ID x 1/2-Inch OD, 10 FT, Made in USA: Amazon.com: Industrial & Scientific
Othmro 1m Length PVC Rigid Round Tubing 28mm ID x 32mm OD for Garden Aquarium Agricultural Polyvinylchlorid Tube White 3pcs: Amazon.com: Industrial & Scientific
uxcell PVC Tubing 1/2"(12mm) ID x 5/8"(16mm) OD 1m Flexible PVC Tube Air Hose Pipe for Pump Transfer Clear: Amazon.com: Industrial & Scientific
uxcell 2 M 21 x 25 mm PVC Flexible Corrugated Conduit Tube for Garden,Office Black - - Amazon.com