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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 TF 36, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 36, 0.2µ

    $83.68
    sku: WH6710-3602
  2. Membrane filter, round, PTFE, 0,20 µm, 2 pc/PAK
    Duran Group

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

    $36.84
    sku: DU1129819
  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.

    $183.48
    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.

    $186.12
    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.

    $194.04
    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.

    $194.04
    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

    $202.40
    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

    $135.26
    sku: WH10401614
  9. Membrane Filter, CN, 50 mm, 0.8µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 50 mm, 0.8µm, 100 pc/PAK

    $127.43
    sku: ST11301-50-N
  10. Membrane Filter, CN, 50 mm, 1.2µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 50 mm, 1.2µm, 100 pc/PAK

    $127.43
    sku: ST11303-50-N
  11. Membrane Filter, CN, 25 mm, 0.45µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 25 mm, 0.45µm, 100 pc/PAK

    $92.45
    sku: ST11306-25-N
  12. Membrane Filter, CN, 47 mm, 0.45µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 47 mm, 0.45µm, 100 pc/PAK

    $107.44
    sku: ST11306-47-N
  13. 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
  14. Hydrophobe Membrane Filter, PTFE, 47 mm, 0.45µm, 100 pc/PAK
    Sartorius

    Hydrophobe Membrane Filter, PTFE, 47 mm, 0.45µm, 100 pc/PAK

    $306.08
    sku: ST11806-47-N
  15. Membrane Filter, RC, round, non-sterile, 50 mm, 0.2µm, 100 pc/PAK
    Sartorius

    Membrane Filter, RC, round, non-sterile, 50 mm, 0.2µm, 100 pc/PAK

    $149.08
    sku: ST18407-50-N
  16. Membrane Filter, PC, round, non-sterile, 47 mm, 0.4µm, 100 pc/PAK
    Sartorius

    Membrane Filter, PC, round, non-sterile, 47 mm, 0.4µm, 100 pc/PAK

    $164.38
    sku: ST23006-47-N
  17. Membrane Filter, PC, round, non-sterile, 25 mm, 0.2µm, white without grid, 100 pc/PAK
    Sartorius

    Membrane Filter, PC, round, non-sterile, 25 mm, 0.2µm, white without grid, 100 pc/PAK

    $112.21
    sku: ST23007-25-N
  18. Filter NYLON 47 mm, 0.45 100/PK
    Waters

    Filter NYLON 47 mm, 0.45 100/PK

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

    Filter NYLON 47 mm, 0.2 100/PK

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

    Filter PTFE 47 mm, 0.45 100/PK

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

    Filter PTFE 47 mm, 0.2 100/PK

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

    Filter GH POLYPRO 47 mm, 0.45 100/PK

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

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

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

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

    $139.00
    sku: WTWAT200539
  25. 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
  26. 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
  27. Membrane Filter, CN, 47 mm, 1.2µm, white-black, sterile, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 47 mm, 1.2µm, white-black, sterile, 100 pc/PAK

    $104.94
    sku: ST11403-47-ACN
  28. Membrane Filter, CN, 25 mm, 0.2µm, white-black HE, non-sterile 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 25 mm, 0.2µm, white-black HE, non-sterile 100 pc/PAK

    $96.61
    sku: ST13107-25-N
  29. 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
  30. 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
  31. 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
  32. Membrane Filter, round, Nuclepore, PC, 47 mm, 0.6 µm, 100 pc/PAK
    Whatman

    Membrane Filter, round, Nuclepore, PC, 47 mm, 0.6 µm, 100 pc/PAK

    $162.62
    sku: WH10417212
  33. 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
  34. 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
  35. 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
  36. Membrane Filter, CN, 100 mm, 0.45µm, 25 pc/PAK
    Sartorius

    Membrane Filter, CN, 100 mm, 0.45µm, 25 pc/PAK

    $152.41
    sku: ST11306-100-G
  37. Capsule Filter, Polycap TF 75, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 75, 0.2µ

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

    Capsule Filter, Polycap AS 36, 0.2µ

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

    Capsule Filter, Polycap TF 75, 0.2µ

    $121.11
    sku: WH6711-7502
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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
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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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