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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. Gelatine Filter, disposables, 80 mm, single sterile packed, 10 pc/PAK
    Sartorius

    Gelatine Filter, disposables, 80 mm, single sterile packed, 10 pc/PAK

    $123.00
    sku: ST17528-80-ACD
  2. Capsule Filter, Polycap TF 36, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 36, 0.2µ

    $98.55
    sku: WH6710-3602
  3. 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

    $226.13
    sku: WH10401114
  4. 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

    $106.11
    sku: WH10401606
  5. Membrane filter, round, ME24, MCE, 25 mm, 0,20 µm, 100/pk
    Whatman

    Membrane filter, round, ME24, MCE, 25 mm, 0,20 µm, 100/pk

    $106.11
    sku: WH10401706
  6. Membrane filter, round, RC55, RC, 47 mm, 0,45 µm, 100/pk
    Whatman

    Membrane filter, round, RC55, RC, 47 mm, 0,45 µm, 100/pk

    $317.87
    sku: WH10410212
  7. Membrane Filter, CA, 47 mm, 0.2µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CA, 47 mm, 0.2µm, 100 pc/PAK

    Regular Price: $123.00

    Special Price $110.70

    sku: ST11107-47-N
  8. Membrane Filter, CN, 37 mm, 0.8µm, 100 pc/PAK
    Sartorius

    Membrane Filter, CN, 37 mm, 0.8µm, 100 pc/PAK

    Regular Price: $156.00

    Special Price $140.40

    sku: ST11301-37-N
  9. Membrane Filter, CN, 50 mm, 1.2µm, 100 pc/PAK
    Sartorius

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

    $170.00
    sku: ST11303-50-N
  10. Membrane Filter, CN, 50 mm, 0.8µm, 100 pc/PAK
    Sartorius

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

    $174.00
    sku: ST11304-50-N
  11. Membrane Filter, CN, 25 mm, 0.45µm, 100 pc/PAK
    Sartorius

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

    $123.00
    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

    Regular Price: $143.00

    Special Price $128.70

    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

    $143.00
    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

    $465.00
    sku: ST11806-47-N
  15. Hydrophobe Membrane Filter, PTFE, 13 mm, 0.2µm, 100 pc/PAK
    Sartorius

    Hydrophobe Membrane Filter, PTFE, 13 mm, 0.2µm, 100 pc/PAK

    $260.00
    sku: ST11807-13-N
  16. Membrane Filter, RC, round, non-sterile, 47 mm, 0.2µm, white without grid, 100 pc/PAK
    Sartorius

    Membrane Filter, RC, round, non-sterile, 47 mm, 0.2µm, white without grid, 100 pc/PAK

    $199.00
    sku: ST18407-47-N
  17. Filter NYLON 47 mm, 0.45 100/PK
    Waters

    Filter NYLON 47 mm, 0.45 100/PK

    $160.00
    sku: WTWAT200532
  18. Filter NYLON 47 mm, 0.2 100/PK
    Waters

    Filter NYLON 47 mm, 0.2 100/PK

    $160.00
    sku: WTWAT200533
  19. Filter PTFE 47 mm, 0.45 100/PK
    Waters

    Filter PTFE 47 mm, 0.45 100/PK

    $426.00
    sku: WTWAT200534
  20. Filter PTFE 47 mm, 0.2 100/PK
    Waters

    Filter PTFE 47 mm, 0.2 100/PK

    $426.00
    sku: WTWAT200535
  21. Filter SUPOR (PES) 47 mm, 0.45 100/PK
    Waters

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

    $154.00
    sku: WTWAT200538
  22. Filter SUPOR (PES) 47 mm, 0.2 100/PK
    Waters

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

    $154.00
    sku: WTWAT200539
  23. 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.

    $129.84
    sku: HMNC04547BL
  24. 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.

    $147.60
    sku: HMNC04550BL
  25. Membrane Filter, round Durapore, hydrophile PVDF, 47 mm, 0,22 µm, 100/Pak
    Millipore

    Membrane Filter, round Durapore, hydrophile PVDF, 47 mm, 0,22 µm, 100/Pak

    $200.59
    sku: MPGVWP04700
  26. Membrane filter, round, Durapore, PVDF, 47 mm, 0,45 µm, 100/pac
    Millipore

    Membrane filter, round, Durapore, PVDF, 47 mm, 0,45 µm, 100/pac

    $200.59
    sku: MPHVLP04700
  27. Membrane filter, round, Metricel, PP, 25 mm, 0,80 µm, black, 200/pac
    Pall Corporation

    Membrane filter, round, Metricel, PP, 25 mm, 0,80 µm, black, 200/pac

    $207.77
    sku: PA66587
  28. 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

    $235.20
    sku: PANCG047100
  29. Membrane filter, round, ME26, ME, 25 mm, 0,60 µm, 100/pk
    Whatman

    Membrane filter, round, ME26, ME, 25 mm, 0,60 µm, 100/pk

    $91.45
    sku: WH10401506
  30. 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

    $182.09
    sku: WH10417212
  31. Membrane Filter, round, Nuclepore, PC, 25 mm, 0.2 µm, 100 pc/PAK
    Whatman

    Membrane Filter, round, Nuclepore, PC, 25 mm, 0.2 µm, 100 pc/PAK

    $105.09
    sku: WH10417006
  32. Filter Disc, DISC, wwPTFE, 0,2 µm, 47 mm, 50 pc/PAK
    Waters

    Filter Disc, DISC, wwPTFE, 0,2 µm, 47 mm, 50 pc/PAK

    $261.00
    sku: WT186009330
  33. Filter Disc, DISC, wwPTFE, 0,45 µm, 47 mm, 50 pc/PAK
    Waters

    Filter Disc, DISC, wwPTFE, 0,45 µm, 47 mm, 50 pc/PAK

    $261.00
    sku: WT186009316
  34. Membrane filter, round, Nuclepore, PC, 25 mm, 0,80 µm, 100/pk
    Whatman

    Membrane filter, round, Nuclepore, PC, 25 mm, 0,80 µm, 100/pk

    $107.72
    sku: WH110609
  35. Capsule Filter, Polycap TF 75, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 75, 0.2µ

    $142.63
    sku: WH6700-7502
  36. Capsule Filter, Polycap AS 36, 0.2µ
    Whatman

    Capsule Filter, Polycap AS 36, 0.2µ

    $69.20
    sku: WH6708-3602
  37. Capsule Filter, Polycap TF 75, 0.2µ
    Whatman

    Capsule Filter, Polycap TF 75, 0.2µ

    $142.63
    sku: WH6711-7502
  38. 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

    $147.89
    sku: WH10401614
  39. 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

    $229.33
    sku: WH10402014
  40. 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

    $147.53
    sku: WH10404106
  41. 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

    $288.00
    sku: WH10410012
  42. 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

    $327.47
    sku: WH10411111
  43. 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

    $334.93
    sku: WH10411313
  44. 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

    $207.12
    sku: WH10414012
  45. 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

    $178.96
    sku: WH110603
  46. 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

    $435.20
    sku: WH111101
  47. 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

    $314.67
    sku: WH111103
  48. 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

    $218.67
    sku: WH111703
  49. 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

    $1,278.93
    sku: WH6809-5022
  50. 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

    $768.00
    sku: WH6809-6012
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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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