Macherey-Nagel PORAFIL Membrane Filters TE are high-performance filters designed for precise and efficient filtration in laboratory and industrial applications. Manufactured by Macherey-Nagel, these filters feature a 1.00 µm pore size, ensuring effective particle retention for reliable sample analysis. The 142 mm diameter filters are made from polytetrafluoroethylene (PTFE), offering excellent chemical resistance and thermal stability, making them ideal for various filtration processes including microbiological testing, water analysis, and chemical filtration.