ACCU- TUBING PVC 0.23 ML/MIN. BRIDGES ORANGE/WHITE PK OF 12Elkay Manifold Pump Tubing Specially formulated PVC tubing which is heat treated for increased operating life, and resistant to a broad range of inorganic chemicals. For use with continuous flow analyser peristaltic pumps. Identified by the colour of the bridges which corresponds to the colour and location of the original equipment manufacturer. Distance between bridges is 152mm. ACCU rated for use where flow consistency and accuracy are critical.