Macherey-Nagel PORAFIL Membrane Filters TE are high-performance filters designed for precise filtration in laboratory and industrial applications. Manufactured by Macherey-Nagel, these filters feature a 3.00 µm pore size, ensuring effective particle retention for reliable sample analysis. The 220 mm diameter filters are made from polytetrafluoroethylene (PTFE), offering excellent chemical resistance and thermal stability, making them ideal for various filtration processes such as microbiological testing, water analysis, and chemical filtration.