This tubing provides the best of both worlds; it has PE on the inside for compatibility and PVC on the outside to minimize kinking.

• Stiff
• Bondable
• Kink resistant
• Excellent compound compatibility
• Low air permeability

This tubing was developed to prevent the loss of compounds due to absorption into the tubing, evaporation through the tubing, or alteration due to the leaching of plasticizers from the tubing. Normal PE tubing provides excellent compound compatibility, but unfortunately it is prone to kinking.

This tubing provides the best of both: it has PE on the inside for compatibility and PVC on the outside to minimize kinking. The two sizes of Co-ex are designed to attach to commonly used 22 and 25 G swivels, couplers, PinPorts™ and Luer stubs. The 22 G size is also available with a black PVC outer layer for protection of light-sensitive compounds. Co-ex is also terrific when evaporation could be an issue, such as in external tether lines where fluid is static between intermittent blood samples.