The Pall Gelman Membrane Filter is a high-quality quantitative filter paper with a 0.45μm pore size and a 25mm diameter. Made by the reputable brand Pall, this filter is designed for precision filtration in various medical, lab, and industrial applications. With a pack of 100 filters, this unit is ideal for ensuring the purity and safety of samples and fluids in a laboratory setting. The Pall Gelman Membrane Filter (0.45μm) 25 mm (100/pk) is a reliable and efficient solution for filtering out impurities and contaminants from your samples.