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Merck
Whatman® regenerated cellulose membrane filters RC55 Membrane Circles, diam. 142 mm, pore size 0.45 μm

Whatman® regenerated cellulose RC55 filter discs 0.45 μm pore size

Whatman® regenerated cellulose membrane filters RC55 Membrane Circles, diam. 142 mm, pore size 0.45 μm