Aug 04, 2008 · PTFE Membrane Filter, 0.45um, 142mm, 50/pack Price : US$362.09 Select About Us Click for More Product number: SF15132 PTFE Membrane Filter, 1.00um, 142mm, 50/pack Price : US$362.09 Select Click for More Product number: SF15133 PTFE Membrane Filter, 3.00um, 142mm, 50/pack Price :