Whether you need to concentrate proteins, viruses or other biomolecules in biological, environmental or clinical samples, Alfa Chemistry has the tools for you. Choose from a series of filter materials provided in sterile or non-sterile form for small to large-volume sample preparation, where various molecular weight cut-offs are available. From centrifugal equipment, static concentrators to stirred ultrafiltration cups, our ultrafiltration products provide high recovery rates and fast processing for consistent and reliable performance.