The LDPE inner layer can handle contact with many reagents. The exterior non-DEHP PVC layer eases assembly, and feels and bonds similar to traditional medical tubing. It comes in coils of varying inner (0.02 to 0.125 in.) and outer (0.06 to 0.25 in.) diameters.
Qosina, 150-Q Executive Dr., Edgewood, NY 11717, (631) 242-3000, qosina.com