Description. Pall® 66602 Nylaflo Nylon Membrane Filter, 0.2um Pore Size, 47 mm Diameter, Pack of 100. Diameter: 47 mm. Minimum Boil Point: 3.4 bar. Maximum Operating Temperature (Metric): 100 °C. Pore Size: 0.2 µm. Typical Thickness: 127 µm. Most PALL® items are