What is Teflon Tube? A Teflon tube is a type of tubing made from polytetrafluoroethylene (PTFE), commonly known by the brand name Teflon. Teflon Tube or PTFE Tubing is a semi-transparent, chemically inert, and non-toxic material . One of its unique features is temperature resistance. And, it has a surface that facilitates the flow of...