A-A-55697 Tube, Nonmetallic; Polyvinyl Chloride \(Pvc\) Flexible \(For Laboratory And Medical Use\)This commercial item description \(CID\) covers the general requirements for clear flexible PVC tubing. Clear flexible PVC tubing covered by this CID is intended for commercial/industrial applications in medical and laboratory application, including fluid signals, low pressure air, gas, and vacuum but not limited to medical transfusions and infusions.