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Whatman 10407714 Cellulose Nitrate MicroPlus-21 ST Filter Membrane, Sterile, 50mm White Circle with 3.1mm Black Grid, 0.45 Micron (Pack of 100): Science Lab Filter Membranes: Amazon.com: Industrial & Scientific
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Sartorius 11406-47-ACN Membrane Filter Disc, Cellulose Nitrate, Sterile, 0.45 μm, 47mm, White with Black Grids (Pack of 100): Amazon.com: Industrial & Scientific
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10407114 Whatman 10407114 Hydrophilic Cellulose Nitrate Filter Membrane 0.45 µm, 50 mm (400/Pack) Ohaus Scale, Magnetic Stirrer, Vortex Mixer, Sample Prep, Centrifuge
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Whatman 7141-104 Cellulose Nitrate Membrane Sterile Filter with Grid, 47mm Diameter, 0.45 Micron (Pack of 100): Science Lab Filters: Amazon.com: Industrial & Scientific
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Cytiva 10401114 Cellulose Nitrate Membrane, NC 45 Range, Non Sterile, Circle, 0.45µm Pore Size, 50mm Diameter (Pack of 100): Science Lab Filter Membranes: Amazon.com: Industrial & Scientific
Cellulose Nitrate (Mixed Cellulose Ester) Membrane Filters / Type 11306, 0.45 µm pore size, 100 pieces per pack | Sartorius
CYTIVA WHATMAN Filter Membrane: 0.45 um Pore Size, 25 mm Dia, Cellulose Nitrate, 100 PK - 32HJ20|7184-002 - Grainger
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Cole-Parmer Essentials Sterile Gridded Cellulose Nitrate Membranes; 0.45µm Pore, 47mm Dia, 100/Pk from Masterflex
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