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Membrane Filters

Membrane Filters

Tisch Scientific is your source for membrane filters and other micro-filtration devices. Our highest quality facility assures consistent quality across our wide variety of membrane filters. We offer competitive prices without compromising quality.

Whether you are performing simple bottle top filtration or operating a complex vacuum manifold system our expert staff is ready to help you with your membrane filter selections. Why not take advantage of over 30 years of experience in the business.

Beyond the expert advice we also offer a sample program and we’ll ship it to you right away.

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Buy Membrane Filters here but first be informed. The Membrane Filter Technique (MF Technique) offers the advantage of isolating discrete colonies of bacteria, whereas the MPN procedure only indicates the presence or absence of an approximate number or organisms.The concentration of larger samples on a membrane filter is a key benefit of the technique over the MPN procedure as well as over Pour Plate and Spread Plate techniques.

Many industry and U.S. EPA test procedures require samples of 100 mL or more to be analyzed for the presence of bacteria. The Pour Plate technique is limited to a sample volume of 2 mL and the Spread Plate technique has a limit of 0.5 mL.

Using the Membrane Filter Technique, a 100 mL sample is passed through a 47 mm membrane using a filter funnel and vacuum system. Any organisms in the sample are concentrated on the surface of the membrane. The filter is then placed in a petri dish with nutrient medium. The passage of nutrients through the filter facilitates the growth of organisms on the upper surface of the membrane. The discrete colonies that form on the surface of the membrane can be easily transferred to confirmation media.

Municipal water treatment plants monitor drinking, waste, and surface water for the presence of coliform bacteria by the MF Technique. The key organism monitored in water treatment facilities is E. coli. The U.S. EPA considers this organism the leading indicator of fecal contamination.

In addition to its use by government labs for monitoring drinking water, the Membrane Filter Technique is also used for microbial monitoring in the pharmaceutical, cosmetics, electronics, and food and beverage industries. The MF Technique is used in these industrial labs to monitor the presence of microorganisms in process waters and final product.

The pharmaceutical and cosmetics industries typically focus on monitoring their process water for Pseudomonas species. The electronics industry monitors for any and all microorganisms because they must keep their process water free from even the smallest organisms. Microbial monitoring in the food and beverage industry typically employs several types of techniques because of the variety of samples that are encountered. Beverage samples can typically be monitored for microorganisms by the MF Technique, but when solid samples cannot be liquefied, alternative methods must be used.

1–36 of 91 items
  1. Nylon Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14529 Nylon Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14529

    Regular Price: $117.19

    Price $103.59

  2. MCE Membrane Filters White Membrane Black Grid, 0.22 um, 47mm, Sterile, 150 per pack, SF17000 MCE Membrane Filters White Membrane Black Grid, 0.22 um, 47mm, Sterile, 150 per pack, SF17000

    Regular Price: $69.64

    Price $60.56

  3. PTFE Membrane Filters, 1.0 um, 150mm, Nonsterile, 50 per pack, SF13868 PTFE Membrane Filters, 1.0 um, 150mm, Nonsterile, 50 per pack, SF13868

    Regular Price: $528.44

    Price $467.14

  4. PES Membrane Filters, 0.22 um, 47mm, Nonsterile, 200 per pack, SF15021 PES Membrane Filters, 0.22 um, 47mm, Nonsterile, 200 per pack, SF15021

    Regular Price: $177.85

    Price $133.64

  5. MCE Membrane Filters, 0.22 um, 47mm, Nonsterile, 200 per pack, SF14628 MCE Membrane Filters, 0.22 um, 47mm, Nonsterile, 200 per pack, SF14628

    Regular Price: $74.48

    Price $65.84

  6. Nylon Membrane Filters, 3.00 um, 150mm, Nonsterile, 50 per pack, SF17989 Nylon Membrane Filters, 3.00 um, 150mm, Nonsterile, 50 per pack, SF17989

    Regular Price: $158.26

    Price $125.04

  7. Polypropylene Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF14554 Polypropylene Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF14554

    Regular Price: $95.27

    Price $84.22

  8. MCE Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14633 MCE Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14633

    Regular Price: $79.52

    Price $70.29

  9. Polypropylene Membrane Filters, 1.0 um, 47mm, Nonsterile, 200 per pack, SF14905 Polypropylene Membrane Filters, 1.0 um, 47mm, Nonsterile, 200 per pack, SF14905

    Regular Price: $95.27

    Price $84.22

  10. Cellulose Acetate CA Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF15115 Cellulose Acetate CA Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF15115

    Regular Price: $78.95

    Price $69.79

  11. PVDF Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF16723 PVDF Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF16723

    Regular Price: $157.25

    Price $125.82

  12. PTFE Membrane Filters, 0.22 um, 47mm, Nonsterile, 100 per pack, SF13856 PTFE Membrane Filters, 0.22 um, 47mm, Nonsterile, 100 per pack, SF13856

    Regular Price: $94.56

    Price $75.52

  13. MCE White Membrane/Black Blue Grid Membrane Filters, 0.45 um, 47mm, Sterile, 200 per pack, SF14709 MCE White Membrane/Black Blue Grid Membrane Filters, 0.45 um, 47mm, Sterile, 200 per pack, SF14709

    Regular Price: $107.39

    Price $97.12

  14. PTFE Hydrophilic Membrane Filters, 0.22 um, 47mm, Sterile, 200 per pack, SF16013 PTFE Hydrophilic Membrane Filters, 0.22 um, 47mm, Sterile, 200 per pack, SF16013

    Regular Price: $404.06

    Price $351.36

  15. Nylon Membrane Filters, 0.80 um, 47mm, Nonsterile, 200 per pack, SF14527 Nylon Membrane Filters, 0.80 um, 47mm, Nonsterile, 200 per pack, SF14527

    Regular Price: $117.19

    Price $103.59

  16. MCE White Membrane/Black Grid Membrane Filters, 0.80 um, 47mm, Nonsterile, 100 per pack, SF15251 MCE White Membrane/Black Grid Membrane Filters, 0.80 um, 47mm, Nonsterile, 100 per pack, SF15251

    Regular Price: $36.16

    Price $31.97

  17. PTFE Membrane Filters, 0.22 um, 150mm, Nonsterile, 50 per pack, SF13858 PTFE Membrane Filters, 0.22 um, 150mm, Nonsterile, 50 per pack, SF13858

    Regular Price: $528.44

    Price $467.14

  18. Nylon Membrane Filters, 0.45 um, 47mm, Sterile, 200 per pack, SF18013 Nylon Membrane Filters, 0.45 um, 47mm, Sterile, 200 per pack, SF18013

    Regular Price: $150.97

    Price $131.28

  19. MCE Membrane Filters Black Membrane Filter with White Grid, 0.45 um, 47mm, Sterile, 150 per pack, SF17003 MCE Membrane Filters Black Membrane Filter with White Grid, 0.45 um, 47mm, Sterile, 150 per pack, SF17003

    Regular Price: $99.00

    Price $87.52

  20. Nylon Membrane Filters, 0.45 um, 150mm, Nonsterile, 50 per pack, SF13884 Nylon Membrane Filters, 0.45 um, 150mm, Nonsterile, 50 per pack, SF13884

    Regular Price: $123.12

    Price $108.84

  21. PES Membrane Filters, 1.20 um, 47mm, Nonsterile, 200 per pack, SF18036 PES Membrane Filters, 1.20 um, 47mm, Nonsterile, 200 per pack, SF18036

    Regular Price: $177.85

    Price $157.78

  22. MCE Membrane Filters, 0.80 um, 47mm, Nonsterile, 200 per pack, SF14631 MCE Membrane Filters, 0.80 um, 47mm, Nonsterile, 200 per pack, SF14631

    Regular Price: $79.52

    Price $70.29

  23. Polypropylene Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14870 Polypropylene Membrane Filters, 3.00 um, 47mm, Nonsterile, 200 per pack, SF14870

    Regular Price: $164.00

    Price $144.98

  24. MCE Membrane Filters, 8.00 um, 47mm, Nonsterile, 100 per pack, SF14760 MCE Membrane Filters, 8.00 um, 47mm, Nonsterile, 100 per pack, SF14760

    Regular Price: $36.16

    Price $31.97

  25. Cellulose Acetate CA Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF15103 Cellulose Acetate CA Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF15103

    Regular Price: $78.95

    Price $59.32

  26. Polypropylene Membrane Filters, 2.0 um, 47mm, Nonsterile, 200 per pack, SF14908 Polypropylene Membrane Filters, 2.0 um, 47mm, Nonsterile, 200 per pack, SF14908

    Regular Price: $95.27

    Price $84.22

  27. PTFE Hydrophilic Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF13846 PTFE Hydrophilic Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF13846

    Regular Price: $274.92

    Price $243.03

  28. MCE Black Membrane/White Grid Membrane Filters, 0.80 um, 47mm, Sterile, 200 per pack, SF17166 MCE Black Membrane/White Grid Membrane Filters, 0.80 um, 47mm, Sterile, 200 per pack, SF17166

    Regular Price: $148.75

    Price $123.76

  29. PTFE Membrane Filters, 5.00 um, 47mm, Nonsterile, 100 per pack, SF13871 PTFE Membrane Filters, 5.00 um, 47mm, Nonsterile, 100 per pack, SF13871

    Regular Price: $108.75

    Price $90.64

    As low as: $77.04
  30. Nylon Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF13880 Nylon Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF13880

    Regular Price: $117.19

    Price $87.52

  31. MCE White Membrane/Black Blue Grid Membrane Filters, 0.22 um, 47mm, Sterile, 200 per pack, SF14708 MCE White Membrane/Black Blue Grid Membrane Filters, 0.22 um, 47mm, Sterile, 200 per pack, SF14708

    Regular Price: $107.39

    Price $97.12

  32. PTFE Hydrophilic Membrane Filters, 0.45 um, 150mm, Nonsterile, 50 per pack, SF13848 PTFE Hydrophilic Membrane Filters, 0.45 um, 150mm, Nonsterile, 50 per pack, SF13848

    Regular Price: $336.32

    Price $292.45

  33. Nylon Membrane Filters, 5.00 um, 47mm, Nonsterile, 200 per pack, SF14530 Nylon Membrane Filters, 5.00 um, 47mm, Nonsterile, 200 per pack, SF14530

    Regular Price: $117.19

    Price $103.59

  34. MCE Membrane Filters White Membrane Filter with Black Grid,, 0.45 um, 47mm, Sterile, 150 per pack, SF17001 MCE Membrane Filters White Membrane Filter with Black Grid,, 0.45 um, 47mm, Sterile, 150 per pack, SF17001

    Regular Price: $69.64

    Price $60.56

  35. PTFE Membrane Filters, 5.00 um, 150mm, Nonsterile, 50 per pack, SF13873 PTFE Membrane Filters, 5.00 um, 150mm, Nonsterile, 50 per pack, SF13873

    Regular Price: $336.32

    Price $292.45

  36. PES Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF15022 PES Membrane Filters, 0.45 um, 47mm, Nonsterile, 200 per pack, SF15022

    Regular Price: $177.85

    Price $157.78

1–36 of 91 items