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Whatman

Explore our comprehensive collection of Whatman filtration solutions, trusted by scientists and researchers worldwide for their reliability, innovation, and quality. Whatman, a brand synonymous with excellence in filtration, offers a diverse range of products designed to meet the most rigorous laboratory standards. From the classic Grade 1 Qualitative Filter Papers known for their precise particle retention, to the cutting-edge PVDF Membrane Filters ideal for protein and nucleic acid transfers, our selection encompasses the best in filtration technology. Whether you’re conducting environmental testing, preparing samples for instrumental analysis, or ensuring sample purity in HPLC, our Whatman product line delivers unparalleled performance. Discover filters with superior chemical resistance, high flow rates, and exceptional purity, all crafted to facilitate accurate and consistent results. Shop now to find the perfect Whatman filtration solution for your laboratory needs, where quality and precision come standard.
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$103.55
$103.55 - $103.55
$103.55
$88.81
$88.81 - $88.81
$88.81

Whatman 4827-042 Glass Microfiber Filter Papers Grade 934-AH RTU, 42.5 mm, 100/pk

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$103.55
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$103.55
$88.81
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$88.81
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$122.18
$122.18 - $122.18
$122.18
$104.78
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$104.78

Whatman 3827-042 Glass Microfiber Filter Papers Grade 934-AH RTU, 42.5mm, 100/pk

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$122.18
$122.18 - $122.18
$122.18
$104.78
$104.78 - $104.78
$104.78
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$124.93
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$124.93
$111.94
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$111.94

Whatman 9907-024 Filter Circles, 42.5mm Dia, Grade 934-AH RTU, 100/pk

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In stock

934 AH Ready to Use, 24MM 100/PK

$124.93
$124.93 - $124.93
$124.93
$111.94
$111.94 - $111.94
$111.94
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$54.38
$54.38 - $54.38
$54.38
$46.63
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$46.63

Whatman 1827-042 Filter Circles, 42.5mm Dia, Binder Free Grade 934-AH, 100/pk (PN:1827-042)

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934-AH 4.25CM 100/PKGlass Microfiber Binder Free Grade 934-AH circles, 42.5 mm, 100/pk. The fine particle retention of this popular grade is superi...

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$54.38
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$54.38
$46.63
$46.63 - $46.63
$46.63
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$55.47
$55.47 - $55.47
$55.47
$47.56
$47.56 - $47.56
$47.56

Whatman 1820-042 Filter Circles, 42.5mm Dia, Binder Free Grade GF/A, 100/pk (PN:1820-042)

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GF/A 4.25CM 100/PKGlass Microfiber Binder Free Grade GF/A circles, 42.5 mm, 100/pk. Offers fine particle retention and high flow rate, as well as g...

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$55.47
$55.47 - $55.47
$55.47
$47.56
$47.56 - $47.56
$47.56
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$113.50
$113.50 - $113.50
$113.50
$97.34
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$97.34

Whatman 1821-042 Filter Circles, 42.5mm Dia, Binder Free Grade GF/B, 100/pk (PN:1821-042)

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GF/B 4.25CM 100/PKGlass Microfiber Binder Free Grade GF/B circles, 42.5 mm, 100/pk. Three times thicker than GF/A with higher wet strength and sign...

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$113.50
$113.50 - $113.50
$113.50
$97.34
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$97.34
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$101.60
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$101.60
$87.13
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$87.13

Whatman 1822-042 Filter Circles, 42.5mm Dia, Binder Free Grade GF/C, 100/pk (PN:1822-042)

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GF/C 4.25CM 100/PKGlass Microfiber Binder Free Grade GF/C circles, 42.5 mm, 100/pk. Is the standard filter in many parts of the world for the colle...

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$101.60
$101.60 - $101.60
$101.60
$87.13
$87.13 - $87.13
$87.13
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$66.32
$66.32 - $66.32
$66.32
$56.87
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$56.87

Whatman 1823-042 Filter Circles, 42mm Dia, Binder Free Grade GF/D, 100/pk (PN:1823-042)

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In stock

GF/D 4.25CM 100/PKGlass Microfiber Binder Free Grade GF/D circles, 42.5 mm, 100/pk. Considerably faster in flow rate and overall filtration speed t...

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$66.32
$66.32 - $66.32
$66.32
$56.87
$56.87 - $56.87
$56.87
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$189.78
$189.78 - $189.78
$189.78
$162.75
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$162.75

Whatman 1825-042 Filter Circles, 42.5mm Dia, Binder Free Grade GF/F, 100/pk (PN:1825-042)

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In stock

GF/F 4.25CM 100/PKGlass Microfiber Binder Free Grade GF/F circles, 42.5 mm, 100/pk. This high-efficiency filter will retain fine particles down to ...

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$189.78
$189.78 - $189.78
$189.78
$162.75
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$162.75
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$34.00
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$34.00
$29.16
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$29.16

Whatman 1440-042 Filter Circles, 42.5mm Dia, Ashless Grade 40, 100/pk (PN:1440-042)

Whatman
In stock

GR 40 4.25CM 100/PKQuantitative Filter Papers - Ashless Grade 40 circles, 42.5 mm, 100/pk The classic general purpose ashless filter paper with med...

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$34.00
$34.00 - $34.00
$34.00
$29.16
$29.16 - $29.16
$29.16
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$27.00
$27.00 - $27.00
$27.00
$23.16
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$23.16

Whatman 1441-042 Filter Circles, 42.5mm Dia, Ashless Grade 41, 100/pk (PN:1441-042)

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In stock

GR 41 4.25CM 100/PKQuantitative Filter Papers - Ashless Grade 41 circles, 42.5 mm, 100/pk The fastest ashless filter paper, recommended for analyti...

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$27.00
$27.00 - $27.00
$27.00
$23.16
$23.16 - $23.16
$23.16
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$28.76
$28.76 - $28.76
$28.76
$24.67
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$24.67

Whatman 1442-042 Filter Circles, 42.5mm Dia, Ashless Grade 42, 100/pk (PN:1442-042)

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In stock

GR 42 4.25CM 100/PKQuantitative Filter Papers - Ashless Grade 42 circles, 42.5 mm, 100/pk A world standard for critical gravimetric analysis with t...

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$28.76
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$28.76
$24.67
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$24.67
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$30.40
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$30.40
$26.07
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$26.07

Whatman 1540-042 Filter Circles, 42.5mm Dia, Hardened Ashless Grade 540, 100/pk (PN:1540-042)

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In stock

GR 540 4.25CM 100/PKQuantitative Filter Papers - Hardened Ashless Grade 540 Circles, 42.5 mm 100/pk The general purpose hardened ashless filter pap...

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$30.40
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$30.40
$26.07
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$26.07
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$30.40
$30.40 - $30.40
$30.40
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$26.07

Whatman 1541-042 Filter Circles, 42.5mm Dia, Hardened Ashless Grade 541, 100/pk (PN:1541-042)

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GR 541 4.25CM 100/PKQuantitative Filter Papers - Hardened Ashless Grade 541 Circles, 42.5 mm 100/pk. Fast filtration of coarse particles and gelati...

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$30.40
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$30.40
$26.07
$26.07 - $26.07
$26.07
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$28.76
$28.76 - $28.76
$28.76
$24.67
$24.67 - $24.67
$24.67

Whatman 1450-042 Filter Circles, 42.5mm Dia, Hardened Low Ash Grade 50, 100/pk (PN:1450-042)

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In stock

GR 50 4.25CM 100/PKQuantitative Filter Papers - Hardened Low Ash Grade 50 circles, 42.5 mm 100/pk Retention of very fine crystalline precipitates. ...

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$28.76
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$28.76
$24.67
$24.67 - $24.67
$24.67
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$12.08
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$12.08
$10.36
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$10.36

Whatman 1001-042 Filter Circles, 42.5mm Dia, Grade 1, 100/pk (PN:1001-042)

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In stock

GR 1 4.25CM 100/PKQualitative Filter Papers - Standard Grades Grade 1 circles, 42.5 mm, 100/pk, The most widely used filter paper for routine appli...

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$12.08
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$12.08
$10.36
$10.36 - $10.36
$10.36
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$15.00
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$15.00
$12.86
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$12.86

Whatman 1002-042 Filter Circles, 42.5mm Dia, Grade 2, 100/pk (PN:1002-042)

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GR 2 4.25CM 100/PKQualitative Filter Papers - Standard Grades Grade 2 circles, 42.5 mm, 100/pk, Slightly more retentive and absorbant than Grade 1 ...

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$15.00
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$15.00
$12.86
$12.86 - $12.86
$12.86
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$12.08
$12.08 - $12.08
$12.08
$10.36
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$10.36

Whatman 1004-042 Filter Circles, 42.5mm Dia, Grade 4, 100/pk (PN:1004-042)

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In stock

GR 4 4.25CM 100/PKQualitative Filter Papers - Standard Grades Grade 4 circles, 42.5 mm, 100/pk Extremely fast filtering with excellent retention o...

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$12.08
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$12.08
$10.36
$10.36 - $10.36
$10.36
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$13.00
$13.00 - $13.00
$13.00
$11.15
$11.15 - $11.15
$11.15

Whatman 1005-042 Filter Circles, 42.5mm Dia, Grade 5, 100/pk (PN:1005-042)

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In stock

GR 5 4.25CM 100/PKQualitative Filter Papers - Standard Grades Grade 5 circles, 42.5 mm, 100/pk gets the maximum degree of fine particle filtration ...

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$13.00
$13.00 - $13.00
$13.00
$11.15
$11.15 - $11.15
$11.15
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