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Membrane filters are surface filters used to remove particulate or collect microorganism for analysis from solutions, on and near the surface of the filter matrix by mechanical means. Our wide range of membrane materials (PTFE, regenerated cellulose, nylon, cellulose nitrate, polycarbonate, aluminum oxide, etc.) provides the user with an array of solvent compatibility options, porosities and pore sizes according to individual specific needs. Some membrane materials are also available sterile.

Membrane filters are typically used in both liquid and air filtration. They offer accurately controlled pore size distribution with high strength and flexibility and are suitable  for a wide range of applications such as basic research, environmental testing and pharmaceutical, as well as food and beverage industries. We offer membrane filters by  industry leaders such as Sartorius and Whatman.

Click here for more information on membrane filter materials.

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Membrane Filters

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  1. Capsule Filter, Polycap AS 36, 0.2µ
    Whatman

    Capsule Filter, Polycap AS 36, 0.2µ

    $58.72
    sku: WH6708-3602
  2. Capsule Filter, Polycap TF 36, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 36, 0.2µ

    $83.09
    sku: WH6710-3602
  3. Membrane filter, round, Porafil CM, MCE, 47 mm, 0,45 µm, white, sterile, gridded, indiv. Packed
    Macherey-Nagel

    Membrane filter, round, Porafil CM, MCE, 47 mm, 0,45 µm, white, ster.

    $169.51
    sku: MN65300045047
  4. Membrane filter, round, Porafil CM, MCE, 50 mm, 0,45 µm, white, sterile, gridded, indiv. Packed
    Macherey-Nagel

    Membrane filter, round, Porafil CM, MCE, 50 mm, 0,45 µm, white, ster.

    $172.04
    sku: MN65300045050
  5. Membrane filter, round, Porafil CM, MCE, 50 mm, 0,45 µm, black, sterile, gridded, indiv. Packed
    Macherey-Nagel

    Membrane filter, round, Porafil CM, MCE, 50 mm, 0,45 µm, black, ster.

    $179.63
    sku: MN65310045050
  6. Membrane filter, round, Porafil CM, MCE, 0,45 mm, 0,45 µm, green, sterile, gridded, indiv. Packed
    Macherey-Nagel

    Membrane filter, round, Porafil CM, MCE, 0,45 mm, 0,45 µm, gr., ster.

    $179.63
    sku: MN65320045050
  7. Membrane filter, round, NC45, CN, 50 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, NC45, CN, 50 mm, 0,45 µm, 100/pk

    $195.62
    sku: WH10401114
  8. Membranfilter, MCE, ME 25, 50 mm, 0,45 µm, white, w/o net 100/Pak
    Whatman

    Membranfilter, MCE, ME 25, 50 mm, 0,45 µm, white, w/o net 100/Pak

    $132.00
    sku: WH10401614
  9. Membrane filter, round, NC10, CN, 50 mm, 0,10 µm, 100/pk
    Whatman

    Membrane filter, round, NC10, CN, 50 mm, 0,10 µm, 100/pk

    $198.20
    sku: WH10402014
  10. Membrane filter, round, Nuclepore AOX, PC, 25 mm, 0,40 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore AOX, PC, 25 mm, 0,40 µm, 100/pk

    $138.51
    sku: WH110637
  11. Membrane filter, round, Nuclepore, PC, 47 mm, 0,015 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 0,015 µm, 100/pk

    $319.70
    sku: WH111101
  12. Membrane filter, round, Nuclepore, PC, 47 mm, 0,60 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 0,60 µm, 100/pk

    $136.93
    sku: WH111108
  13. Membrane filter, round, Nuclepore, PC, 47 mm, 3,00 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 3,00 µm, 100/pk

    $136.93
    sku: WH111112
  14. Filter GHP 47 mm, 0.2µm 100/PK
    Waters

    Filter GHP 47 mm, 0.2µm 100/PK

    $168.89
    sku: WT186003524
  15. Filter NYLON 47 mm, 0.45 100/PK
    Waters

    Filter NYLON 47 mm, 0.45 100/PK

    $156.67
    sku: WTWAT200532
  16. Filter NYLON 47 mm, 0.2 100/PK
    Waters

    Filter NYLON 47 mm, 0.2 100/PK

    $156.67
    sku: WTWAT200533
  17. Filter PTFE 47 mm, 0.45 100/PK
    Waters

    Filter PTFE 47 mm, 0.45 100/PK

    $417.78
    sku: WTWAT200534
  18. Filter PTFE 47 mm, 0.2 100/PK
    Waters

    Filter PTFE 47 mm, 0.2 100/PK

    $417.78
    sku: WTWAT200535
  19. Filter GH POLYPRO 47 mm, 0.45 100/PK
    Waters

    Filter GH POLYPRO 47 mm, 0.45 100/PK

    $166.67
    sku: WTWAT200537
  20. Filter SUPOR (PES) 47 mm, 0.45 100/PK
    Waters

    Filter SUPOR (PES) 47 mm, 0.45 100/PK

    $151.11
    sku: WTWAT200538
  21. Filter SUPOR (PES) 47 mm, 0.2 100/PK
    Waters

    Filter SUPOR (PES) 47 mm, 0.2 100/PK

    $151.11
    sku: WTWAT200539
  22. Membrane filter, round, Metricel, PP, 85 mm, 0,45 µm, 50/pac
    Pall Corporation

    Membrane filter, round, Metricel, PP, 85 mm, 0,45 µm, 50/pac

    $59.69
    sku: PA60016
  23. Membrane filter, round, WCN, CN, 25 mm, 0,10 µm, 100/pk
    Whatman

    Membrane filter, round, WCN, CN, 25 mm, 0,10 µm, 100/pk

    $151.81
    sku: WH7181-002
  24. Capsule Filter, Polycap TF 36, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 36, 0.2µ

    $88.47
    sku: WH6700-3602
  25. Membrane filter, round, AE100, CN, 47 mm, 12,0 µm, 100/pk
    Whatman

    Membrane filter, round, AE100, CN, 47 mm, 12,0 µm, 100/pk

    $234.60
    sku: WH10400012
  26. Membrane filter, round, AE99, CN, 50 mm, 8,00 µm, 100/pk
    Whatman

    Membrane filter, round, AE99, CN, 50 mm, 8,00 µm, 100/pk

    $214.00
    sku: WH10400114
  27. Membrane filter, round, AE98, CN, 47 mm, 5,00 µm, 100/pk
    Whatman

    Membrane filter, round, AE98, CN, 47 mm, 5,00 µm, 100/pk

    $202.00
    sku: WH10400212
  28. Membrane filter, round, ME28, MCE, 25 mm, 1,20 µm, 100/pk
    Whatman

    Membrane filter, round, ME28, MCE, 25 mm, 1,20 µm, 100/pk

    $128.40
    sku: WH10400806
  29. Membrane filter, round, ME25, ME, 25 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, ME25, ME, 25 mm, 0,45 µm, 100/pk

    $94.69
    sku: WH10401606
  30. Membrane filter, round, ME24, MCE, 142 mm, 0,20 µm, 25/pk
    Whatman

    Membrane filter, round, ME24, MCE, 142 mm, 0,20 µm, 25/pk

    $153.79
    sku: WH10401731
  31. Membrane filter, round, OE67, CA, 25 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, OE67, CA, 25 mm, 0,45 µm, 100/pk

    $127.35
    sku: WH10404006
  32. Membrane filter, round, OE66, CA, 25 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, OE66, CA, 25 mm, 0,20 µm, 100/pk

    $127.35
    sku: WH10404106
  33. Membrane filter, round, RC55, RC, 25 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, RC55, RC, 25 mm, 0,45 µm, 100/pk

    $192.05
    sku: WH10410206
  34. Membrane filter, round, RC55, RC, 50 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, RC55, RC, 50 mm, 0,45 µm, 100/pk

    $290.95
    sku: WH10410214
  35. Membrane filter, round, RC55, RC, 100 mm, 0,45 µm, 25/pk
    Whatman

    Membrane filter, round, RC55, RC, 100 mm, 0,45 µm, 25/pk

    $203.55
    sku: WH10410219
  36. Membrane filter, round, RC58, RC, 47 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, RC58, RC, 47 mm, 0,20 µm, 100/pk

    $286.35
    sku: WH10410312
  37. Membrane filter, round, TE38, PTFE, 50 mm, 5,00 µm, 50/pk
    Whatman

    Membrane filter, round, TE38, PTFE, 50 mm, 5,00 µm, 50/pk

    $320.14
    sku: WH10411113
  38. Membrane filter, round, Nuclepore, PC, 13 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 13 mm, 0,20 µm, 100/pk

    $55.58
    sku: WH110406
  39. Membrane filter, round, Nuclepore, PC, 25 mm, 0,015 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 0,015 µm, 100/pk

    $174.80
    sku: WH110601
  40. Membrane filter, round, Nuclepore, PC, 25 mm, 0,03 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 0,03 µm, 100/pk

    $124.96
    sku: WH110602
  41. Membrane filter, round, Nuclepore, PC, 25 mm, 0,08 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 0,08 µm, 100/pk

    $131.70
    sku: WH110604
  42. Membrane filter, round, Nuclepore, PC, 25 mm, 10,0 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 10,0 µm, 100/pk

    $78.80
    sku: WH110615
  43. Membrane filter, round, Nuclepore, PC, 47 mm, 0,10 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 0,10 µm, 100/pk

    $234.60
    sku: WH111105
  44. Membrane filter, round, Nuclepore, PC, 47 mm, 0,40 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 0,40 µm, 100/pk

    $136.93
    sku: WH111107
  45. Membrane filter, round, Nuclepore, PC, 47 mm, 1,00 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 1,00 µm, 100/pk

    $136.93
    sku: WH111110
  46. Membrane filter, round, Nuclepore, PC, 47 mm, 5,00 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 5,00 µm, 100/pk

    $136.93
    sku: WH111113
  47. Membrane filter, round, Nuclepore, PC, 47 mm, 8,00 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 8,00 µm, 100/pk

    $136.93
    sku: WH111114
  48. Membrane filter, round, Nuclepore, PC, 47 mm, 10,0 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 10,0 µm, 100/pk

    $136.93
    sku: WH111115
  49. Membrane filter, round, Nuclepore, PC, 50 mm, 12,0 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 50 mm, 12,0 µm, 100/pk

    $153.24
    sku: WH111216
  50. Membrane filter, round, Cyclopore PC, 25 mm, 2,00 µm, 100/pk
    Whatman

    Membrane filter, round, Cyclopore PC, 25 mm, 2,00 µm, 100/pk

    $74.74
    sku: WH7060-2511
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Membrane filter of differnet materials have specific properties. Therefore, the choice of the correct filter depends greatly on the chemicals used. 
The following table gives an overview of application areas and chemical resistence of each polymer. 

Celluloseacetate (CA)

Low protein-binding, well suited for sterile filtration and clear filtration of aqueous solutions, nutrient media, buffers and sera. They provide superior chemical resistance to alcohol and oil. These hydrophilic membranes offer excellent flow rates as well as thermal stability up to 180° C max.

Cellulosenitrate (CN)

Cellulose nitrate membranes set the standard in both analytical and microbiological filtration. Cellulose nitrate is available in a range of pore sizes and is well suited for microbial analysis in water, food and beverage applications. Available in dispenser strips or individually sealed.

Polyamide (PA)

Membranes are hydrophilic and are widely used in both aqueous and organic solvent filtration applications. Well suited for sterilization and clear filtration of buffers and nutrient media with a low level of extractables.

Polycarbonate (PC)

PC membranes have uniform, smooth, round pores that pass straight through the membrane creating a precise capillary structure. The smooth, flat surface of the PC membrane offers high visibility of captured particles.
Polytetrafluorethylen (PTFE)

Permanently hydrophobic filter material, very suitable for air and gas filtration. PTFE membranes are extremely resistant to aggressive solvents and acids and can be used to filter particulate from both liquid and gas samples.

Regenerated Cellulose (RC)

Regenerated cellulose membranes are resistant to solvents and are hydrophilic. 0.45 μm pore size is typically used for HPLC sample preparation.

 

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