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Thomas CFP4-185 Cellulose Qualitative Filter Paper, 20-26 Micron, Fast Flow, Grade CFP4, 18.5cm Diameter (Pack of 100)

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$27.86

$ 12 .99 $12.99

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1.Size:20-26 Micrometer Pore, Fast Flow, Grade Cfp4, 4.25cm Diameter (pack Of 100)


  • Qualitative cellulose filter papers perform separation by entrapping particulate
  • Widely used in methods requiring the determination and identification of particulate in both liquids and gas
  • Very commonly used as the first media in a multi-stage filtration process
  • Ideally suited for use in organic extractions and biological fluid separation processes
  • Often specified in air monitoring applications


Qualitative cellulose filter papers perform separation by entrapping particulate within the random matrix of cellulose fibers within the depth of the media. This media is widely used in methods requiring the determination and identification of particulate in both liquids and gas. Also, this natural fiber filter paper is commonly used to clarify liquid samples. The fastest flow rate demonstrated by any of the qualitative cellulose filter media's resulting in a low retention rate of approximately 20-26 micrometer. Very commonly used as the first media in a multi-stage filtration process. Ideally suited for use in organic extractions and biological fluid separation processes. Often specified in air monitoring applications where the entrapment of fine particulate is not required.


Dave Angel
Reviewed in Canada on May 22, 2020
Fit in Buckner funnel. Filtered out particulates. Covers all the holes. Wish it reached the edges though.
Dave Angel
Reviewed in Canada on May 22, 2020
Fit in Buckner funnel. Filtered out particulates. Covers all the holes. Wish it reached the edges though.