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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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$67.40
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Whatman 10313951 Filter Circles, 240mm Dia, Folded Prepleated Grade 2555

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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
$67.40
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$67.40
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$408.00
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$367.74
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$367.74

Whatman 10331456 Filter Circles, 500mm Dia, Folded Prepleated Grade 520 a, 100/pk

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520A FF 500MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 520 a 1/2 folded filters, 500 mm, 100/pk A thin qualitative filter paper w...

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$408.00
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$408.00
$367.74
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$367.74
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$1,284.00
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$1,157.31
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$1,157.31

Whatman 10331687 Filter Paper, Grade 520 bll, Sheet, 580mm x 580mm, 250/pk

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520BII 58x58CM 250/PKFilter Papers for Technical Use - Grade 520 bII sheets, 580 x 580 mm, 250/pk. A thick paper with high wet strength offering a ...

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$1,284.00
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$1,284.00
$1,157.31
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$1,157.31
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$45.84
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$45.84
$41.32
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$41.32

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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$45.84
$41.32
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$41.32
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$82.19
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$82.19
$74.09
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$74.09

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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$82.19
$74.09
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$99.55
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$89.73
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$89.73

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

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In stock

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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$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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In stock

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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$99.15
$89.37
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$89.37
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$289.00
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$260.49
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$260.49

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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$260.49
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$260.49
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$130.95
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$130.95
$118.03
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$118.03

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

Whatman
In stock

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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$130.95
$118.03
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$118.03
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$80.36
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$80.36
$64.87
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$64.87

Whatman 10334547 Filter Circles, 185mm Dia, Folded Prepleated Grade 0860, 100/Pk

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In stock

0860 FF 185MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0860 1/2 folded filters, 185 mm, 100/pk. Comparable to Grade 0858 but with ...

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$80.36
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$80.36
$64.87
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$64.87
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$733.00
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$660.68
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$660.68

Whatman 10331487 Filter Circles, 240mm Dia, Folded, Grade 520B, 50/pk

Whatman
In stock

520A 58x58CM 250/PKFilter Papers for Technical Use - Grade 520 a sheets, 580 x 580 mm, 250/pk. A thin paper with great wet strength and a very high...

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$733.00
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$660.68
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$660.68
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$281.00
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$226.82
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Whatman 10331554 Filter Circle, 385mm Dia, Folded Prepleated Grade 520B, 50/pk

Whatman
In stock

520B FF 385MM 50/PKQualitative Filter Papers - Folded Prepleated Grade 520 b 1/2 folded filters, 385 mm, 100/pk. Very fast, high wet strength, extr...

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$143.85
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$143.85
$116.11
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$116.11

Whatman 10331553 Filter Circles, 320mm Dia, Folded, Grade 520B, 50/pk

Whatman
In stock

520B FF 320MM 50/PKQualitative Filter Papers - Folded Prepleated Grade 520 b 1/2 folded filters, 320 mm, 100/pk. Very fast, high wet strength, extr...

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$143.85
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$143.85
$116.11
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$116.11
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$429.00
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$386.68
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$386.68

Whatman 10331556 Filter Circles, 500mm Dia, Folded, Grade 520B, 50/pk

Whatman
In stock

520B FF 500MM 50/PKQualitative Filter Papers - Folded Prepleated Grade 520 b 1/2 folded filters, 500 mm, 100/pk. Very fast, high wet strength, extr...

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$429.00
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$429.00
$386.68
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$386.68
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$94.52
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$85.20
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$85.20

Whatman 10342860 Filter Circles, 180mm/33 ZL1, For Technical Use Grade 2294, 100/pk

Whatman
In stock

2294 180MM 100/PK CHOLE 33MMFilter Papers for Technical Use - Grade 2294 circles, 180 mm with central hole 33 mm, 100/pk. A very thick filter card ...

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$85.20
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$224.00
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$224.00
$201.89
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$201.89

Whatman 10342810 Filter Circles, 110mm Dia, For Technical Use Grade 2294, 100/pk

Whatman
In stock

2294 110MM 100/PKFilter Papers for Technical Use - Grade 2294 circles, 110 mm, 100/pk. A very thick filter card with high wet strength. Offers very...

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$224.00
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$224.00
$201.89
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$201.89
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$56.17
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$50.62
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$50.62

Whatman 10334347 Filter Circles, 185mm Dia, Folded Prepleated Grade 0858, 100/pk

Whatman
In stock

0858 FF 185MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0858 1/2 folded filters, 185 mm, 100/pk. A universal filter paper,grained, ...

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$56.17
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$56.17
$50.62
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$50.62
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$76.09
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$68.58
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$68.58

Whatman 10343976 Filter Sheets, 25 x 75mm, For Technical Use Grade 2589 d, 100/pk

Whatman
In stock

2589D 25x75MM 100/PK W2HOLESFilter Papers for Technical Use - Grade 2589 d sheets, with 2 holes, 25 x 75mm, 100/pk. A very thick filter with high w...

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$76.09
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$76.09
$68.58
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$68.58
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$538.00
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$538.00
$484.92
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$484.92

Whatman 10343687 Filter Sheets, 580 x 580mm, For Technical Use Grade 2589 a, 100/pk

Whatman
In stock

2589A 580x580MM 100/PKFilter Papers for Technical Use - Grade 2589 a sheets, 580 x 580 mm, 100/pk. A fast to medium fast filter with high wet stren...

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$538.00
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$538.00
$484.92
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$484.92
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$105.06
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$105.06
$94.69
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$94.69

Whatman 10334352 Filter Circles, 270mm Dia, Folded Prepleated Grade 0858, 100/Pk

Whatman
In stock

0858 FF 270MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0858 1/2 folded filters, 270 mm, 100/pk. A universal filter paper,grained, ...

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$105.06
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$105.06
$94.69
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$94.69
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$228.00
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$228.00
$205.50
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$205.50

Whatman 10334365 Filter Paper, Grade 0858, Sheet, 110mm x 580mm, Wrapstrip, 500/pk

Whatman
In stock

0858 11x58CM 500/PK WRAPSTRIPQualitative Filter Papers - Folded Prepleated Grade 0858 wrapstrips, 11 x 58 cm, 500/pk. A universal filter paper,grai...

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$228.00
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$228.00
$205.50
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$205.50
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$502.00
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$502.00
$452.47
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$452.47

Whatman 10334383 Filter Paper, Grade 0858, Sheet, 390mm x 390mm, 500/pk

Whatman
In stock

0858 390x390MM 500/PKQualitative Filter Papers - Standard Grade 0858 sheets, 390 x 390mm, 500/pk. A universal filter paper,grained, with medium fas...

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$502.00
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$502.00
$452.47
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$452.47
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$49.22
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$49.22
$44.36
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$44.36

Whatman 10347004 Filter Circles, 45mm Dia, 8 Ruled, 100/pk

Whatman
In stock

8 RULED 45MM 100/PKQualitative Filter Papers - 8 Ruled White paper with green lines at 5mm intervals, 45 mm, 100/Pk.

$49.22
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$49.22
$44.36
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$44.36
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$75.80
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$75.80
$61.18
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$61.18

Whatman 10334551 Filter Circles, 240mm Dia, Folded Prepleated Grade 0860, 100/Pk

Whatman
In stock

0860 FF 240MM 100/PKQualitative Filter Papers - Folded Prepleated Grade 0860 1/2 folded filters, 240 mm, 100/pk. Comparable to Grade 0858 but with ...

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$75.80
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$75.80
$61.18
$61.18 - $61.18
$61.18
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