Macherey-Nagel PORAFIL Membrane Filters TE are high-quality filters designed for precise and efficient filtration in laboratory and industrial applications. Manufactured by Macherey-Nagel, these filters feature a 0.20 µm pore size, ensuring excellent retention of fine particles. The 100 mm diameter filters are made from polytetrafluoroethylene (PTFE) material, making them ideal for aggressive media filtration, including aqueous and organic solutions, concentrated acids, and bases. These filters are hydrophobic and can be used at temperatures up to 145°C.