100 Pcs. PVDF Syringe Filter Lab Filters 0.22um Pore Size 25mm Diameter Hydrophilic Filtration Non-Sterile Yellow Condition is new. Shipped with USPS Mail. The product is a Cobetter brand PVDF membrane syringe lab filter with a 0.22um pore size and 25mm hydrophilic design. It includes 100 pieces of filters with an outer diameter of 25mm. These filters are designed for laboratory use to filter out impurities and particles from various solutions, ensuring the purity and quality of the substances being studied. With a brand known for reliability, these filters provide a reliable solution for downstream applications in research, pharmaceuticals, and other fields requiring precise filtration.