Top Quality Syringe Filters are simply quality filters, well individually packaged, and offered at a fair and competitive price. The Classic range is available in PES which is supplied in 25mm formats in virgin polypropylene housings. Our Syringe filters are purpose-built with features designed to bring the highest levels of performance and purity to your research. PES (Polyethersulfone) _ low affinity for proteins and ex-tractable with substantially faster flow rates than PVDF; suitable for pre-filtration and filtration of buffers and culture media. Membrane materials are supplied by the best names in the industry and the ISO9000 certified manufacturing is carried out to the highest standards, in certified clean room conditions, using the latest manufacturing technology to ensure a high quality, consistent product.