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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. Membrane filter, round, PTFE, 0,20 µm, 2 pc/PAK
    Duran Group

    Membrane filter, round, PTFE, 0,20 µm, 2 pc/PAK

    $35.77
    sku: DU1129819
  2. 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.

    $183.48
    sku: MN65300045047
  3. 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.

    $186.12
    sku: MN65300045050
  4. 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.

    $194.04
    sku: MN65310045050
  5. 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.

    $194.04
    sku: MN65320045050
  6. Filter NYLON 47 mm, 0.45 100/PK
    Waters

    Filter NYLON 47 mm, 0.45 100/PK

    $145.00
    sku: WTWAT200532
  7. Filter NYLON 47 mm, 0.2 100/PK
    Waters

    Filter NYLON 47 mm, 0.2 100/PK

    $145.00
    sku: WTWAT200533
  8. Filter PTFE 47 mm, 0.45 100/PK
    Waters

    Filter PTFE 47 mm, 0.45 100/PK

    $385.00
    sku: WTWAT200534
  9. Filter PTFE 47 mm, 0.2 100/PK
    Waters

    Filter PTFE 47 mm, 0.2 100/PK

    $385.00
    sku: WTWAT200535
  10. Filter GH POLYPRO 47 mm, 0.45 100/PK
    Waters

    Filter GH POLYPRO 47 mm, 0.45 100/PK

    $154.00
    sku: WTWAT200537
  11. Filter SUPOR (PES) 47 mm, 0.45 100/PK
    Waters

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

    $139.00
    sku: WTWAT200538
  12. Filter SUPOR (PES) 47 mm, 0.2 100/PK
    Waters

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

    $139.00
    sku: WTWAT200539
  13. Cellulose Acetate Membrane Filter, 47 mm, 0.45 µm, white, 100 pcs.
    Hahnemühle

    Cellulose Acetate Membrane Filter, 47 mm, 0.45 µm, white, 100 pcs.

    $124.80
    sku: HMNC04547BL
  14. Cellulose Acetate Membrane Filter, 50 mm, 0.45 µm, white, 100 pcs.
    Hahnemühle

    Cellulose Acetate Membrane Filter, 50 mm, 0.45 µm, white, 100 pcs.

    $141.96
    sku: HMNC04550BL
  15. Membrane filter, round, Isopore, PC, 25 mm, 3,00 µm, 100/pac
    Millipore

    Membrane filter, round, Isopore, PC, 25 mm, 3,00 µm, 100/pac

    $240.00
    sku: MPTSTP02500
  16. Membrane filter, round, Isopore, PC, 25 mm, 2,00 µm, 100/pac
    Millipore

    Membrane filter, round, Isopore, PC, 25 mm, 2,00 µm, 100/pac

    $210.00
    sku: MPTTTP02500
  17. Membrane filter, round, Ultipor Nylon, PA, 47 mm, 5,00 µm, 100/pac
    Pall Corporation

    Membrane filter, round, Ultipor Nylon, PA, 47 mm, 5,00 µm, 100/pac

    $207.60
    sku: PANCG047100
  18. Micro Ultrafiltration Unit, Nanosep MF Bio-Inert-Membrane, 0,45 µm, 500 pc/PAK
    Pall Corporation

    Micro Ultrafiltration Unit, Nanosep MF Bio-Inert-Membrane, 0,45 µm, 500 pc/PAK

    $1,908.00
    sku: PAODM45C35
  19. Filter Disc, DISC, wwPTFE, 0,2 µm, 47 mm, 50 St/Pkg
    Waters

    Filter Disc, DISC, wwPTFE, 0,2 µm, 47 mm, 50 St/Pkg

    $236.00
    sku: WT186009330
  20. Filter Disc, DISC, wwPTFE, 0,45 µm, 47 mm, 50 St/Pkg
    Waters

    Filter Disc, DISC, wwPTFE, 0,45 µm, 47 mm, 50 St/Pkg

    $236.00
    sku: WT186009316
  21. Membrane Filter, CN, 50 mm, 0.45µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 50 mm, 0.45µm, 100 pc/PAK

    $107.44
    sku: ST11306-50-N
  22. Capsule Filter, Polycap TF 75, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 75, 0.2µ

    $121.11
    sku: WH6700-7502
  23. Capsule Filter, Polycap AS 36, 0.2µ
    Whatman

    Capsule Filter, Polycap AS 36, 0.2µ

    $58.75
    sku: WH6708-3602
  24. Capsule Filter, Polycap TF 75, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 75, 0.2µ

    $121.11
    sku: WH6711-7502
  25. 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

    $202.40
    sku: WH10401114
  26. 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

    $135.26
    sku: WH10401614
  27. 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

    $205.06
    sku: WH10402014
  28. 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

    $131.76
    sku: WH10404106
  29. Membrane filter, round, RC60, RC, 47 mm, 1,00 µm, 100/pk
    Whatman

    Membrane filter, round, RC60, RC, 47 mm, 1,00 µm, 100/pk

    $225.42
    sku: WH10410012
  30. Membrane filter, round, TE38, PTFE, 47 mm, 5,00 µm, 50/pk
    Whatman

    Membrane filter, round, TE38, PTFE, 47 mm, 5,00 µm, 50/pk

    $256.20
    sku: WH10411111
  31. Membrane filter, round, TE36, PTFE, 50 mm, 0,45 µm, 50/pk
    Whatman

    Membrane filter, round, TE36, PTFE, 50 mm, 0,45 µm, 50/pk

    $261.63
    sku: WH10411313
  32. Membrane filter, round, NL16, PA, 47 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, NL16, PA, 47 mm, 0,20 µm, 100/pk

    $184.99
    sku: WH10414012
  33. Membrane filter, round, Nuclepore, PC, 25 mm, 0,05 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 0,05 µm, 100/pk

    $140.14
    sku: WH110603
  34. 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

    $340.39
    sku: WH111101
  35. Membrane filter, round, Nuclepore, PC, 47 mm, 0,05 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 47 mm, 0,05 µm, 100/pk

    $246.24
    sku: WH111103
  36. Membrane filter, round, Nuclepore, PC, 90 mm, 0,05 µm, 25/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 90 mm, 0,05 µm, 25/pk

    $154.19
    sku: WH111703
  37. Membrane filter, round, Anodisc, AL2O3, 47 mm, 0,20 µm, with Supp., 50/pk
    Whatman

    Membrane filter, round, Anodisc, AL2O3, 47 mm, 0,20 µm, with Supp., 50/pk

    $859.07
    sku: WH6809-5022
  38. Membrane filter, round, Anodisc, AL2O3, 25 mm, 0,10 µm, with Supp., 50/pk
    Whatman

    Membrane filter, round, Anodisc, AL2O3, 25 mm, 0,10 µm, with Supp., 50/pk

    $483.38
    sku: WH6809-6012
  39. Membrane filter, round, Anodisc, AL2O3, 25 mm, 0,20 µm, with Supp., 50/pk
    Whatman

    Membrane filter, round, Anodisc, AL2O3, 25 mm, 0,20 µm, with Supp., 50/pk

    $483.38
    sku: WH6809-6022
  40. Membrane filter, round, Anodisc, AL2O3, 13 mm, 0,10 µm, 100/pk, without Supp.
    Whatman

    Membrane filter, round, Anodisc, AL2O3, 13 mm, 0,10 µm, 100/pk, without Supp.

    $489.79
    sku: WH6809-7013
  41. 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

    $79.52
    sku: WH7060-2511
  42. Membrane filter, round, Cyclopore PC, 47 mm, 0,10 µm, 100/pk
    Whatman

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

    $136.98
    sku: WH7060-4701
  43. Membrane filter, round, Cyclopore PC, 47 mm, 1,00 µm, 100/pk
    Whatman

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

    $136.98
    sku: WH7060-4710
  44. Membrane filter, round, Cyclopore PC, 47 mm, 3,00 µm, 100/pk
    Whatman

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

    $136.98
    sku: WH7060-4712
  45. Membrane filter, round, Cyclopore PC Clear, 25 mm, 5,00 µm, 100/pk
    Whatman

    Membrane filter, round, Cyclopore PC Clear, 25 mm, 5,00 µm, 100/pk

    $123.97
    sku: WH7062-2513
  46. Membrane filter, round, WCN, CN, 47 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, WCN, CN, 47 mm, 0,45 µm, 100/pk

    $167.54
    sku: WH7184-004
  47. Membrane filter, round, WCN, CN, 47 mm, 5,00 µm, 100/pk
    Whatman

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

    $212.09
    sku: WH7195-004
  48. Membrane filter, round, ME24/21 ST, MCE, 47 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, ME24/21 ST, MCE, 47 mm, 0,20 µm, 100/pk

    $47.96
    sku: WH10406970
  49. Membrane filter, round, ME25/31, MCE, 50 mm, 0,45 µm, black, sterile, 100/pk
    Whatman

    Membrane filter, round, ME25/31, MCE, 50 mm, 0,45 µm, black, sterile, 100/pk

    $147.82
    sku: WH10409772
  50. 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

    $161.54
    sku: WH7181-002
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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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