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Rest assured that we are currently maintaining a staff of people to accept and ship your orders on time. Please feel free to contact us at 513-467-0222 with any concerns or questions.

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 60 items
  1. PTFE Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF13870 PTFE Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF13870

    Regular Price: $107.28

    Price $94.84

  2. MCE Membrane Filters, 0.65 um, 25mm, Nonsterile, 200 per pack, SF14622 MCE Membrane Filters, 0.65 um, 25mm, Nonsterile, 200 per pack, SF14622

    Regular Price: $76.98

    Price $69.62

  3. Nylon Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF13878 Nylon Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF13878

    Regular Price: $81.87

    Price $72.37

  4. Polyethersulfone PES Membrane Filter, 1 um, 25mm, Nonsterile, 200 per pack, SF18094 Polyethersulfone PES Membrane Filter, 1 um, 25mm, Nonsterile, 200 per pack, SF18094

    Regular Price: $83.89

    Price $74.16

  5. Nylon Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14523 Nylon Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14523

    Regular Price: $86.78

    Price $76.71

  6. Polypropylene Membrane Filters, 0.20 um, 25mm, Nonsterile, 200 per pack, SF14551 Polypropylene Membrane Filters, 0.20 um, 25mm, Nonsterile, 200 per pack, SF14551

    Regular Price: $48.15

    Price $41.87

  7. Polypropylene Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF14856 Polypropylene Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF14856

    Regular Price: $48.15

    Price $41.87

  8. Cellulose Acetate CA Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF15114 Cellulose Acetate CA Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF15114

    Regular Price: $67.82

    Price $59.96

  9. MCE White Membrane/Black Blue Grid Membrane Filters, 0.45 um, 25mm, Sterile, 100 per pack, SF14707 MCE White Membrane/Black Blue Grid Membrane Filters, 0.45 um, 25mm, Sterile, 100 per pack, SF14707

    Regular Price: $58.33

    Price $51.56

  10. PTFE Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF13860 PTFE Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF13860

    Regular Price: $121.64

    Price $107.53

  11. MCE Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF14620 MCE Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF14620

    Regular Price: $76.98

    Price $69.62

  12. PTFE Membrane Filters, 0.05 um, 25mm, Nonsterile, 200 per pack, SF18038 PTFE Membrane Filters, 0.05 um, 25mm, Nonsterile, 200 per pack, SF18038

    Regular Price: $167.86

    Price $139.46

  13. MCE Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14626 MCE Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14626

    Regular Price: $76.98

    Price $69.62

  14. Nylon Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF14521 Nylon Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF14521

    Regular Price: $86.78

    Price $76.71

  15. PES Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF15176 PES Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF15176

    Regular Price: $83.89

    Price $74.16

  16. Polypropylene Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF14853 Polypropylene Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF14853

    Regular Price: $48.15

    Price $41.87

  17. Cellulose Acetate CA Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF15102 Cellulose Acetate CA Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF15102

    Regular Price: $65.73

    Price $58.10

  18. MCE Black Membrane/White Grid Membrane Filters, 0.45 um, 25mm, Sterile, 100 per pack, SF14723 MCE Black Membrane/White Grid Membrane Filters, 0.45 um, 25mm, Sterile, 100 per pack, SF14723

    Regular Price: $60.20

    Price $53.22

  19. PTFE Hydrophilic Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF13850 PTFE Hydrophilic Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF13850

    Regular Price: $152.00

    Price $134.37

  20. MCE White Membrane/Black Grid Membrane Filters, 0.45 um, 25mm, Nonsterile, 100 per pack, SF14715 MCE White Membrane/Black Grid Membrane Filters, 0.45 um, 25mm, Nonsterile, 100 per pack, SF14715

    Regular Price: $32.20

    Price $28.46

  21. PTFE Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF15119 PTFE Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF15119

    Regular Price: $119.42

    Price $105.57

  22. MCE Membrane Filters, 0.80 um, 25mm, Nonsterile, 200 per pack, SF14623 MCE Membrane Filters, 0.80 um, 25mm, Nonsterile, 200 per pack, SF14623

    Regular Price: $76.98

    Price $69.62

  23. Nylon Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF14517 Nylon Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF14517

    Regular Price: $86.78

    Price $76.71

  24. PES Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF15175 PES Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF15175

    Regular Price: $83.89

    Price $74.16

  25. Polypropylene Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF14552 Polypropylene Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF14552

    Regular Price: $48.15

    Price $41.87

  26. Polypropylene Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14857 Polypropylene Membrane Filters, 5.00 um, 25mm, Nonsterile, 200 per pack, SF14857

    Regular Price: $48.15

    Price $41.87

  27. PTFE Hydrophilic Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF13840 PTFE Hydrophilic Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF13840

    Regular Price: $157.76

    Price $139.46

  28. MCE White Membrane/Black Grid Membrane Filters, 0.80 um, 25mm, Nonsterile, 100 per pack, SF18051 MCE White Membrane/Black Grid Membrane Filters, 0.80 um, 25mm, Nonsterile, 100 per pack, SF18051

    Regular Price: $43.12

    Price $39.00

  29. PTFE Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF13865 PTFE Membrane Filters, 1.0 um, 25mm, Nonsterile, 200 per pack, SF13865

    Regular Price: $143.57

    Price $126.91

  30. MCE Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF14621 MCE Membrane Filters, 0.45 um, 25mm, Nonsterile, 200 per pack, SF14621

    Regular Price: $76.98

    Price $55.66

  31. Nylon Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF13877 Nylon Membrane Filters, 0.22 um, 25mm, Nonsterile, 200 per pack, SF13877

    Regular Price: $81.87

    Price $72.37

  32. Polypropylene Membrane Filters, 0.10 um, 25mm, Nonsterile, 500 per pack, SF18055 Polypropylene Membrane Filters, 0.10 um, 25mm, Nonsterile, 500 per pack, SF18055
    $118.27
  33. Nylon Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF14522 Nylon Membrane Filters, 3.00 um, 25mm, Nonsterile, 200 per pack, SF14522

    Regular Price: $86.78

    Price $76.71

  34. PES Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF16660 PES Membrane Filters, 0.10 um, 25mm, Nonsterile, 200 per pack, SF16660

    Regular Price: $83.89

    Price $74.16

  35. Polypropylene Membrane Filters, 1.20 um, 25mm, Nonsterile, 200 per pack, SF14854 Polypropylene Membrane Filters, 1.20 um, 25mm, Nonsterile, 200 per pack, SF14854

    Regular Price: $48.15

    Price $41.87

  36. Cellulose Acetate CA Membrane Filters, 0.80 um, 25mm, Nonsterile, 200 per pack, SF15108 Cellulose Acetate CA Membrane Filters, 0.80 um, 25mm, Nonsterile, 200 per pack, SF15108

    Regular Price: $67.82

    Price $59.96

1–36 of 60 items