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Membrane Filters

Membrane filters are essential tools in scientific research and industrial processes, designed to selectively separate particles based on size through a semi-permeable barrier. These filters are commonly used in pharmaceutical manufacturing, water treatment, and laboratory research. Constructed from materials such as polysulfone, nylon, and polypropylene, membrane filters feature precise pore sizes that range from several micrometers to a few nanometers. This enables them to perform critical functions such as sterilization by removing microorganisms, and precise sample preparation. Their ability to efficiently block contaminants while allowing desired particles to pass through makes them invaluable for ensuring the purity and safety of various substances. With advancements in technology, the use of membrane filters is expanding, highlighting their significance in improving product safety and environmental health.
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Whatman 7141-114 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, without pad, 47 mm, 100/pk (PN: 7141-114)

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WME WHGRSTNPD 47MM 0.45 100/PKMixed cellulose ester circles (WME), white/black grid 3.1 mm, sterile, without pad, 0.45 µm, 47 mm, 100/pk. Composed ...

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$194.17
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Whatman 10406572 Filter Circles, 50mm Dia, Mixed Cellulose Ester ME Range - ME 25/20, Gridded, White/ Black Grid 5mm, 0.45 micrometer Pore Size, Sterile, 100/pk (PN: 10406572)

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ME25/20 ST 0.45uM 50MM 100/PKMixed cellulose ester circles (ME 25), white/black grid 5 mm, sterile, 0.45 µm, 50 mm are composed of cellulose acetat...

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$289.00
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Whatman 7153-104 Filter Circles, 47mm Dia, Cellulose Nitrate, 0.45 micrometer Pore Size, Black Gridded, Sterile, 100/pk (PN: 7153-104)

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WME BL GRST 47MM 0.45UM 100/PKMixed cellulose ester circles (WME), black/white grid 3.1 mm, sterile, 0.45 µm, 47 mm, 100/pk. Composed of cellulose ...

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$201.00
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Whatman 7140-104 Filter Circles, 47mm Dia, Mixed Cellulose Ester WME Plain, Sterile, 0.45 micrometer Pore Size, 100/pk (PN: 7140-104)

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WME WH ST 47MM 0.45uM 100/PKMixed cellulose ester circles (WME), 0.45 µm, 47 mm, 100/pk. Composed of cellulose acetate and cellulose nitrate. The ...

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$267.00
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Whatman 10409970 Filter Circles, 47mm Dia, Mixed Cellulose Ester ME 27/61, 0.8 micrometer Pore Size, Sterile, 100/pk (PN: 10409970)

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ME27/61 ST 0.8uM 47MM 100/PKMixed cellulose ester circles (ME 27), white/black grid 3.1 mm with pad, sterile, 0.8 µm, 47 mm

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$165.04
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Whatman 7141-204 Filter Circles, 47mm Dia, Mixed Cellulose Ester WME White/ Black Grid 3.1mm, Autocalve Pack, Sterile, 0.45 micrometer Pore Size, 100/pk (PN: 7141-204)

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WME WHGRSTAUTO 47MM 0.45 100/PMixed cellulose ester circles (WME), white/black grid 3.1 mm, autoclave pack, sterile, 0.45 µm, 47 mm, 100/pk. Compos...

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Whatman 10408472 Filter Circles, 50mm Dia, Mixed Cellulose Ester ME Range - ME 28/41, Gridded, Green/ Black Grid 3.1mm, 1.2 micrometer Pore Size, Sterile, 100/pk (PN: 10408472)

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ME28/41 ST 1.2uM 50MM 100/PKMixed cellulose ester circles (ME 28) white/black grid 3.1mm, sterile, 1.2 µm, 50 mm

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$131.63
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Whatman 7141-104 Mixed Cellulose Ester Circle WME Range, 0.45 µm pore size, sterile, individually packed, white, gridded, with pad, 47 mm, 100/pk (PN: 7141-104)

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In stock

WME WHGR ST 47MM 0.45uM 100/PKMixed cellulose ester circles (WME), white/black grid 3.1 mm, sterile, 0.45 µm, 47 mm, 100/pk. Composed of cellulose ...

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$131.63
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$118.64
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Whatman 10400772 Filter Circles, 50mm Dia, Mixed Cellulose Ester ME 29 Plain, 3.0 micrometer Pore Size, 100/pk (PN: 10400772)

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ME29 ST 3.0uM 50MM 100/PKMixed cellulose ester circles membranes (ME 29), sterile, 3 µm, 50 mm are composed of cellulose acetate and cellulose nitr...

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$252.00
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Whatman 7141-124 Filter Circles, 47mm Dia, Mixed Cellulose Ester WME White/ Black Grid 3.1mm, Sterile, 0.45 micrometer Pore Size, 200/pk (PN: 7141-124)

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WME WHGR ST 47MM 0.45uM 200/PKMixed cellulose ester circles (WME), white/black grid 3.1 mm, sterile, 0.45 µm, 47 mm , 200/pk. Composed of cellulose...

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$169.87
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Whatman 10301645 Filter Circles, 150mm Dia, Folded, Grade 0790 1/2, 100/pk

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0790 FF 150MM 100/PKApplication Specific Filters - Grade 0790 1/2 folded filters, 150 mm 100/pk. Acid-washed paper with ash content of approximatel...

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$169.87
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Whatman 10300010 Filter Circles, 110mm Dia, Ashless Grade 589/1, 100/pk (PN:10300010)

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589/1 BLKRIB 110MM 100/PKQuantitative Filter Papers - Black Ribbon Ashless Grade 589/1 circles, 110 mm, 100/pk. Filter paper with very high flow ra...

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Whatman 10310645 Filter Circles, 150mm Dia, Folded, Grade 512 1/2, 100/pk

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512 FF 150MM 100/PKApplication Specific Filters - Grade 512 1/2 folded filters, 150 mm 100/pk. Low phosphate papers approximately 1.5 ppm phosphat...

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Whatman 10301647 Filter Circles, 185mm Dia, Folded, Grade 0790 1/2, 100/pk

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In stock

0790 FF 185MM 100/PKApplication Specific Filters - Grade 0790 1/2 folded filters, 185 mm 100/pk. Acid-washed paper with ash content of approximatel...

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Whatman 10310643 Filter Circles, 110mm Dia, Folded, Grade 512 1/2, 100/pk

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512 FF 110MM 100/PKApplication Specific Filters - Grade 512 1/2 folded filters, 110 mm 100/pk. Low phosphate papers approximately 1.5 ppm phosphat...

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$89.76
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Whatman 10310647 Filter Circles, 185mm Dia, Folded, Grade 512 1/2, 100/pk

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In stock

512 FF 185MM 100/PKApplication Specific Filters - Grade 512 1/2 folded filters, 185 mm 100/pk. Low phosphate papers approximately 1.5 ppm phosphat...

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$112.17
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Whatman 10313947 Filter Circles, 185mm Dia, Folded Prepleated Grade 2555

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2555 FF 185MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 2555 1/2 folded filters, 185 mm, 100/pk. A medium fast filter paper used fo...

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$63.58
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Whatman 10313951 Filter Circles, 240mm Dia, Folded Prepleated Grade 2555

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In stock

2555 FF 240MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 2555 1/2 folded filters, 240 mm, 100/pk. A medium fast filter paper used fo...

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$74.78
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$45.84
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$41.32
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Whatman 10334345 Filter Circles, 150mm Dia, Folded Prepleated Grade 0858, 100/pk

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In stock

0858 FF150MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0858 1/2 folded filters, 150 mm, 100/pk. A universal filter paper,grained, w...

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$45.84
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$82.19
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Whatman 10334351 Filter Circles, 240mm Dia, Folded Prepleated Grade 0858, 100/Pk

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In stock

0858 FF 240MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0858 1/2 folded filters, 240 mm, 100/pk. A universal filter paper,grained, ...

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$82.19
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$74.09
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Whatman 10334353 Filter Circles, 320mm Dia, Folded Prepleated Grade 0858, 100/Pk

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0858 FF 320MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0858 1/2 folded filters, 320 mm, 100/pk. A universal filter paper,grained, ...

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$99.55
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$99.55
$89.73
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$99.15
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$89.37
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$89.37

Whatman 10314844 Filter Circles, 125mm Dia, Folded Prepleated Grade 1574, 100/pk

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1574 FF 125MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 1574 1/2 folded filters, 320 mm, 100/pk. A medium fast filter paper used fo...

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$99.15
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$89.37
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$89.37
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$289.00
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Whatman 10316619 Filter Circles, 230mm Dia, Application Specific Grade 3459, 1000/pk

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In stock

3459 230MM 1000/PKApplication Specific Filters - Grade 3000 circles, 230 mm 1000/pk. Creped or smooth filter papers, good retentivity at a relative...

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$289.00
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$130.95
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$118.03
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Whatman 10331451 Filter Circles, 240mm Dia, Folded Prepleated Grade 520 a, 100/pk

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520A FF 240MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 520 a 1/2 folded filters, 240 mm, 100/pk A thin qualitative filter paper w...

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$130.95
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$118.03
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