Millipores Millipore Express® Plus membrane is now available in cut disk format for use in reusable filter holders. The polyethersulfone (PES) membrane provides ultra-fast filtration of tissue culture media, additives, buffers and other aqueous solutions with low protein binding. It is available as 25 mm and47 mm cut disks with 0.22 m and 0.45 m pore sizes.
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