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The NEST Disposable Vacuum Filtration Systems and BotleTop Filters with PES membranes (Polyethersulfone) are ideal for large volume sample separation and sterilization of cell / tissue culture media and other biological buffers. The units include 0.22µm PES membrane filters with graduated filter tops made with polystyrene, and acrylonitrile-butadiene-styrene necks. Filtration Systems include polystyrene receiving bottles with separate sterile polyethylene caps. Filtration systems and BottleTops are manufactured from raw material of high transparency polystyrene (PS) in four different volumes: 150/250/500/1000 mL. They are available in three styles: Filtration Systems are complete with filte units with receiving/storage bottle units,
Receiving bottles only are available for use with BottleTop filters, or used for storage.. Also inquire for units with other membranes and pores sizes.