Only DuPont makes Teflon®. To be sure you'll get the performance benefits available with DuPont fluoroplastics, specify them by name. Teflon® AF, FEP, FFR, NXT, PFA, and PTFE, as well as Tefzel® ETFE and Zonyl® PTFE, are all products that are part of the DuPont fluoroplastics family.