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Membrane Filters

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.

In the second info box you will find more information about the application areas and the chemical resistance of the individual polymers.

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Items 51-100 of 1543

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Product Image of Ultrafiltration Unit, Nanosep, orange, Omega-Membrane, 300 kD, 100 pc/PAK
Ultrafiltration Unit, Nanosep, orange, Omega-Membrane, 300 kD, 100 pc/PAK
Item number: PAOD300C34
Brand: Pall Corporation
$486.00
Product Image of Ultrafiltration Unit, Nanosep, orange, Omega-Membrane, 300 kD, 24 pc/PAK
Ultrafiltration Unit, Nanosep, orange, Omega-Membrane, 300 kD, 24 pc/PAK
Item number: PAOD300C33
Brand: Pall Corporation
$146.34
Product Image of Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 500 pc/PAK
Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 500 pc/PAK
Item number: PAOD100C35
Brand: Pall Corporation
$1,978.80
Product Image of Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 100 pc/PAK
Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 100 pc/PAK
Item number: PAOD100C34
Brand: Pall Corporation
$549.60
Product Image of Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 24 pc/PAK
Ultrafiltration Unit, Nanosep, clear, Omega-Membrane, 100 kD, 24 pc/PAK
Item number: PAOD100C33
Brand: Pall Corporation
$165.60
Product Image of Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 500 pc/PAK
Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 500 pc/PAK
Item number: PAOD030C35
Brand: Pall Corporation
$1,978.80
Product Image of Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 100 pc/PAK
Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 100 pc/PAK
Item number: PAOD030C34
Brand: Pall Corporation
$549.60
Product Image of Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 24 pc/PAK
Ultrafiltration Unit, Nanosep, red, Omega-Membrane, 30 kD, 24 pc/PAK
Item number: PAOD030C33
Brand: Pall Corporation
$165.60
Product Image of Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 500 pc/PAK
Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 500 pc/PAK
Item number: PAOD010C35
Brand: Pall Corporation
$2,244.00
Product Image of Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 100 pc/PAK
Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 100 pc/PAK
Item number: PAOD010C34
Brand: Pall Corporation
$549.60
Product Image of Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 24 pc/PAK
Ultrafiltration Unit Nanosep, blue, Omega-Membrane, 10 kD, 24 pc/PAK
Item number: PAOD010C33
Brand: Pall Corporation
$165.60
Product Image of Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 500 pc/PAK
Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 500 pc/PAK
Item number: PAOD003C35
Brand: Pall Corporation
$2,244.00
Product Image of Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 100 pc/PAK
Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 100 pc/PAK
Item number: PAOD003C34
Brand: Pall Corporation
$549.60
Product Image of Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 24 pc/PAK
Ultrafiltration Unit Nanosep, gray, Omega-Membrane, 3 kD, 24 pc/PAK
Item number: PAOD003C33
Brand: Pall Corporation
$165.60
Product Image of CHROMAFIL Multi 96, GF-Membran, 3 µm, Mo
CHROMAFIL Multi 96, GF-Membran, 3 µm, Mo
Item number: MN738658.M
Brand: Macherey-Nagel
$36.10
Product Image of Membrane filter, round, Porafil CA, CA, 220 mm, 0,80 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 220 mm, 0,80 µm, white, 25/pac
Item number: MN68000080220
Brand: Macherey-Nagel
$490.24
Product Image of Membrane filter, round, Porafil CA, CA, 142 mm, 0,80 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 142 mm, 0,80 µm, white, 25/pac
Item number: MN68000080142
Brand: Macherey-Nagel
$267.52
Product Image of Membrane filter, round, Porafil CA, CA, 100 mm, 0,80 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 100 mm, 0,80 µm, white, 25/pac
Item number: MN68000080100
Brand: Macherey-Nagel
$222.72
Product Image of Membrane filter, round, Porafil CA, CA, 90 mm, 0,80 µm, white, 50/pac
Membrane filter, round, Porafil CA, CA, 90 mm, 0,80 µm, white, 50/pac
Item number: MN68000080090
Brand: Macherey-Nagel
$366.08
Product Image of Membrane filter, round, Porafil CA, CA, 50 mm, 0,80 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 50 mm, 0,80 µm, white, 100/pac
Item number: MN68000080050
Brand: Macherey-Nagel
$221.44
Product Image of Membrane filter, round, Porafil CA, CA, 47 mm, 0,80 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 47 mm, 0,80 µm, white, 100/pac
Item number: MN68000080047
Brand: Macherey-Nagel
$216.32
Product Image of Membrane filter, round, Porafil CA, CA, 25 mm, 0,80 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 25 mm, 0,80 µm, white, 100/pac
Item number: MN68000080025
Brand: Macherey-Nagel
$161.28
Product Image of Membrane filter, round, Porafil CA, CA, 13 mm, 0,80 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 13 mm, 0,80 µm, white, 100/pac
Item number: MN68000080013
Brand: Macherey-Nagel
$124.42
Product Image of Membrane filter, round, Porafil CA, CA, 220 mm, 0,45 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 220 mm, 0,45 µm, white, 25/pac
Item number: MN68000045220
Brand: Macherey-Nagel
$490.24
Product Image of Membrane filter, round, Porafil CA, CA, 142 mm, 0,45 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 142 mm, 0,45 µm, white, 25/pac
Item number: MN68000045142
Brand: Macherey-Nagel
$267.52
Product Image of Membrane filter, round, Porafil CA, CA, 100 mm, 0,45 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 100 mm, 0,45 µm, white, 25/pac
Item number: MN68000045100
Brand: Macherey-Nagel
$222.72
Product Image of Membrane filter, round, Porafil CA, CA, 90 mm, 0,45 µm, white, 50/pac
Membrane filter, round, Porafil CA, CA, 90 mm, 0,45 µm, white, 50/pac
Item number: MN68000045090
Brand: Macherey-Nagel
$366.08
Product Image of Membrane filter, round, Porafil CA, CA, 50 mm, 0,45 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 50 mm, 0,45 µm, white, 100/pac
Item number: MN68000045050
Brand: Macherey-Nagel
$221.44
Product Image of Membrane filter, round, Porafil CA, CA, 47 mm, 0,45 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 47 mm, 0,45 µm, white, 100/pac
Item number: MN68000045047
Brand: Macherey-Nagel
$216.32
Product Image of Membrane filter, round, Porafil CA, CA, 25 mm, 0,45 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 25 mm, 0,45 µm, white, 100/pac
Item number: MN68000045025
Brand: Macherey-Nagel
$161.28
Product Image of Membrane filter, round, Porafil CA, CA, 13 mm, 0,45 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 13 mm, 0,45 µm, white, 100/pac
Item number: MN68000045013
Brand: Macherey-Nagel
$124.42
Product Image of Membrane filter, round, Porafil CA, CA, 220 mm, 0,20 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 220 mm, 0,20 µm, white, 25/pac
Item number: MN68000020220
Brand: Macherey-Nagel
$490.24
Product Image of Membrane filter, round, Porafil CA, CA, 142 mm, 0,20 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 142 mm, 0,20 µm, white, 25/pac
Item number: MN68000020142
Brand: Macherey-Nagel
$267.52
Product Image of Membrane filter, round, Porafil CA, CA, 100 mm, 0,20 µm, white, 25/pac
Membrane filter, round, Porafil CA, CA, 100 mm, 0,20 µm, white, 25/pac
Item number: MN68000020100
Brand: Macherey-Nagel
$222.72
Product Image of Membrane filter, round, Porafil CA, CA, 90 mm, 0,20 µm, white, 50/pac
Membrane filter, round, Porafil CA, CA, 90 mm, 0,20 µm, white, 50/pac
Item number: MN68000020090
Brand: Macherey-Nagel
$366.08
Product Image of Membrane filter, round, Porafil CA, CA, 50 mm, 0,20 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 50 mm, 0,20 µm, white, 100/pac
Item number: MN68000020050
Brand: Macherey-Nagel
$221.44
Product Image of Membrane filter, round, Porafil CA, CA, 47 mm, 0,20 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 47 mm, 0,20 µm, white, 100/pac
Item number: MN68000020047
Brand: Macherey-Nagel
$216.32
Product Image of Membrane filter, round, Porafil CA, CA, 25 mm, 0,20 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 25 mm, 0,20 µm, white, 100/pac
Item number: MN68000020025
Brand: Macherey-Nagel
$161.28
Product Image of Membrane filter, round, Porafil CA, CA, 13 mm, 0,20 µm, white, 100/pac
Membrane filter, round, Porafil CA, CA, 13 mm, 0,20 µm, white, 100/pac
Item number: MN68000020013
Brand: Macherey-Nagel
$124.42
Product Image of Membrane filter, round, Porafil PC, PC, 50 mm, 0,40 µm, 100/pac
Membrane filter, round, Porafil PC, PC, 50 mm, 0,40 µm, 100/pac
Item number: MN676040050
Brand: Macherey-Nagel
$504.32
Product Image of Membrane filter, round, Porafil PC, PC, 47 mm, 0,40 µm, 100/pac
Membrane filter, round, Porafil PC, PC, 47 mm, 0,40 µm, 100/pac
Item number: MN676040047
Brand: Macherey-Nagel
$492.80
Product Image of Membrane filter, round, Porafil PC, PC, 25 mm, 0,40 µm, 100/pac
Membrane filter, round, Porafil PC, PC, 25 mm, 0,40 µm, 100/pac
Item number: MN676040025
Brand: Macherey-Nagel
$293.12
Product Image of Membrane filter, round, Porafil PE, Polyester, 50 mm, 5,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 50 mm, 5,00 µm, 100/pac
Item number: MN671500050
Brand: Macherey-Nagel
$536.32
Product Image of Membrane filter, round, Porafil PE, Polyester, 47 mm, 5,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 47 mm, 5,00 µm, 100/pac
Item number: MN671500047
Brand: Macherey-Nagel
$428.80
Product Image of Membrane filter, round, Porafil PE, Polyester, 37 mm, 5,00 µm, white, 100/pac
Membrane filter, round, Porafil PE, Polyester, 37 mm, 5,00 µm, white, 100/pac
Item number: MN671500037
Brand: Macherey-Nagel
$372.48
Product Image of Membrane filter, round, Porafil PE, Polyester, 25 mm, 5,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 25 mm, 5,00 µm, 100/pac
Item number: MN671500025
Brand: Macherey-Nagel
$322.56
Product Image of Membrane filter, round, Porafil PE, Polyester, 13 mm, 5,00 µm, white, 100/pac
Membrane filter, round, Porafil PE, Polyester, 13 mm, 5,00 µm, white, 100/pac
Item number: MN671500013
Brand: Macherey-Nagel
$293.12
Product Image of Membrane filter, round, Porafil PE, Polyester, 50 mm, 1,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 50 mm, 1,00 µm, 100/pac
Item number: MN671100050
Brand: Macherey-Nagel
$536.32
Product Image of Membrane filter, round, Porafil PE, Polyester, 47 mm, 1,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 47 mm, 1,00 µm, 100/pac
Item number: MN671100047
Brand: Macherey-Nagel
$428.80
Product Image of Membrane filter, round, Porafil PE, Polyester, 37 mm, 1,00 µm, 100/pac
Membrane filter, round, Porafil PE, Polyester, 37 mm, 1,00 µm, 100/pac
Item number: MN671100037
Brand: Macherey-Nagel
$372.48

Items 51-100 of 1543

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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