Sterlitech offers Sartorius-brand PES Ultrafiltration Membranes, designed for high-performance separation of proteins, enzymes, viruses, and other biomolecules. Made from hydrophilic polyethersulfone (PES), these membranes feature low protein binding, excellent chemical compatibility, and high flow rates. Available in a range of molecular weight cut-offs (1 kDa to 300 kDa) and diameters, they are ideal for concentration, buffer exchange, and sterile filtration in both research and process development settings using stirred cells or custom filtration setups.
