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Merck
Whatman® Nuclepore™ Track-Etched Membranes diam. (37 mm), pore size 0.8 μm, polycarbonate, pack of 100 ea

Whatman® polycarbonate Nuclepore filter discs 0.8 μm pore size

Whatman® Nuclepore™ Track-Etched Membranes diam. (37 mm), pore size 0.8 μm, polycarbonate, pack of 100 ea