Background PFA tubing is often the resin of choice when additional clarity, flexibility, and a higher continuous service temperature are required. Teflon Tubing Often referred to by the trade name Teflon® Tubing, PFA is actually one of three fluoropolymer resins (PTFE, FEP, & PFA) that are marketed under the name Teflon. High Purity tubing In the semiconductor and pharmaceutical industries, PFA HP (High Purity) tubing is used for fluid handling applications requiring an extremely low level of chemical extractables. More information on the properties of PFA resin can be found in our Tech Info section.