Botanical Extraction Filter Pack, Includes 90mm Coarse, Medium, and Fine Filters

Botanical Extraction Filter Packs include one pack each of coarse cellulose filter paper (25 micron), medium cellulose filter paper (6 micron), and fine PES filters (0.45 micron) in 90mm diameter.
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Botanical Extraction Filter Pack, Includes 90mm Coarse, Medium, and Fine Filters Icon

Sterlitech Offers More Cellulose Filter Papers
Polyethersulfone (PES) membranes are ideal for filtering plant-based extracts because they are hydrophilic, low-protein binding, and resistant to a wide range of alcohols and solvents.  Sterlitech PES membranes are also asymmetric; filtering from the more porous (open) side of the membrane allows the filter as its own pre-filter for handling thick slurries.  The 0.45 and 0.2 micron pore sizes offered in this section also serve as the industry standard for removing bacteria by filtration.

Our cellulose filter papers are made from natural, refined wood pulp and pre-washed with acid.  Their large pore structure makes well-suited for pre-filtering and cold-filtering plant lipids or waxes.


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Example Applications:

  • Cold-filtration to remove lipids or waxes
  • Clarification or plant debris removal
  • Bacterial removal (using 0.2 or 0.45 micron PES filters)
  • Ethanol washing

Polyethersulfone (PES) Membrane Filter Specifications

Cellulose Filter Paper Specifications


Cellulose Filter Paper Specifications


  Coarse Medium Slow
Retention 19-26 micron 6 micron 1.5-3.5 micron
Flow Fast Mediium Slow

PES Membrane Filter Specifications



 BSA Protein Binding   ~20 μg/cm2 
 Extractables   <2%
 Max. Operating Temp   130 °C (266 °F)
 Nominal Thickness   110-150 µm


Performance by Pore Size

  Flow Rate1 Bubble Point (psi)
 0.20 µm 33.2 50.0
 0.45 µm 58.2 35.0
 5.00 µm 186.0 6.0
Flow rate measured with water as mL/min/cm2 at 10 psi (0.7 kg/cm2)