FNY0213MC 13mm Membrane Filter, 0.2μm Nylon FNY0413MC 13mm Membrane Filter, 0.45μm Nylon FPT0213MC 13mm Membrane Filter, 0.2μm PTFE FPT0413MC 13mm Membrane Filter, 0.45μm PTFE FPP0213MC 13mm Membrane Filter, 0.2μm Polypropylene FPP0413MC 13mm Membrane Filter, 0.45μm Polypropylene FRC0213MC 13mm Membrane Filter, 0.2μm Regenerated Cellulose