Corning offers vacuum filtration systems with different membranes (PES, CA, CN, NY) and for different volumes. In addition, syringe filters are available. The Corning Spin-X UF concentrators provide an easy way to concentrate or desalt proteins and other biomolecules in one step. These are disposable products with a polyethersulfone membrane (PES) for concentrating and / or purifying biological samples by centrifugation. Corning offers the Spin-X UF concentrators in three sizes.