0.45 Ptfe Filter found in: Syringe Filter, PTFE, 0.45µm, 30mm Diameter, Clear PTFE (Hydrophobic) Syringe Filters, 0.45 µm, 4 mm, Syringe Filter, PTFE, 0.. around it. Denville Syringe Filters are easy to use. They may be used with any luer-lock syringe and are