Description Teflo Membrane TF (PTFE) Membrane Filter Media/Support PTFE with PMP (polymethyl-pentene) support ring PTFE on a polypropylene support Typical Thickness 1 μm: 76 μm (3 mils) 2 μm: 46 μm (1.8 mils) 3 μm: 30.4 μm (1.2 mils) 0.2 μm: 139 μm (5