PTFE Tubing. Chemically inert tubing available in 0.094" and 0.063" IDs. 1/8" OD in 3- and 10-meter lengths. Easily cut to length using Clean-Cut Tubing Cutter ( cat.# 25069 ). Maximum temperature: 100 °C. 1/4-28 threads for use on Mobi-Cap or Hub-Cap bottle tops.