Membrane Filters | VWR Membrane filters serve as effective physical barriers that remove solids, viruses, bacteria, and other unwanted molecules. Specialized types are designed for softening, disinfecting, organic removal processing, and water desalination. The filters can be installed in compact, automated, or modular units. standard grade PTFE membrane filter 0.2 um for solvent standard grade PTFE 0.22 micron filter for solvent prefiltration Leading Supplier of PTFE Syringe Filter,Welcome...