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Vacuum Filter Complete Units

Laguna Scientific Vacuum Polyethersulfone (PES) membrane Filtration  System is complete system includes a media bottle attached to the filter.

Our Vacuum Filtration System is a disposable, sterile, vacuum operated unit used for the preparation of buffers, tissue culture media, microbiological media, and other biological fluids. 

All units are Sterile, DNase, RNase, and Pyrogen free

We also supply a funnel only bottle-top filter. Both options have an upper filter funnel with dust cap.

Polyethersulfone PES membrane Filtration Flasks:  PES membranes recommended. (J Virol Methods. 2003 Apr; 109(1):99-101)

  • No differences in virus recovery between PES and PVDF membranes
  • Recommended for filtering cell culture media
  • Allowed a higher filtration rate and clogged more slowly than PVDF
  • Very low protein, DNA binding and extractables


The pore size is usually determined by your application or objective.


Pore Size


0.1 µm   

Mycoplasma removal

0.2 or 0.22 µm

Routine laboratory sterilization of most media, buffers, biological fluids and gases

0.45 µm   

Clarification and prefiltration of solutions and solvents