Reinforced PVC tubing with 1/2" internal diameter (ID)
Thermo Scientific™ Nalgene™ Non-Phthalate PVC Tubing Nalgene NonPhthalate PVC Tubing; Size: 1/2 in. ID x 3/4 in. OD x 1/8 in. Wall; Length: 50ft Products | Fisher Scientific
Bore Syphon Tube PVC 12 mm x 16 mm (1/2") - 1m
CLEAR PVC FLEXIBLE TUBING | Flexible and Fasteners