PALL 4654 Acrodisc Syringe Filters with Supor Membrane, Sterile - 0.45 µm, 32 mm (50/pkg)

These syringe filters are designed for clarification and sterile filtration of aqueous and biological samples. They are widely used in HPLC sample preparation, buffer filtration, cell culture media preparation, and general laboratory microfiltration where high flow rate and low sample loss are important.

The Supor® hydrophilic polyethersulfone (PES) membrane offers high flow rates and ultra-low protein binding, helping maximize sample recovery. Its asymmetric pore structure also improves throughput and reduces backpressure during manual filtration.

A 0.45 µm pore size is ideal for removing particulates and many bacteria while maintaining fast filtration speed. This makes it suitable for sample clarification prior to analytical testing rather than full sterile-grade filtration.

The 32 mm diameter with approximately 5.8 cm² filtration area allows higher throughput and efficient filtration of larger sample volumes. This size is commonly used for medium to high-volume syringe filtration workflows.

Yes, these filters are pre-sterilized (typically gamma-irradiated) and individually packaged to reduce contamination risk. This allows immediate use in critical laboratory applications requiring clean filtration.