Sartolab® BT 250 PES Bottle Top Filters

Sartolab®BT 250, 0.22 µm, PES, bottle top filters are single-use units for the sterile filtration of sample volumes up to 250 mL.

User Benefits

  • Highest flow rates with a large filtration area
  • No loss of protein with a low protein affinity membrane
  • Low hold-up volume due to an optimized membrane support
  • Can be used as stand-alone system or with the Sartolab® Multistation, which allows parallel filtration of up to 6 samples

Price (USD):
Item No.: 

*Custom/bulk order quotes are provided within 24 hours of request.

The Sartolab® BT bottle top filter is comprised of:

  • A graduated funnel with a polyethersulfone (PES) membrane, a vacuum adapter and a lid

  • A tube connector for vacuum connection (for stand-alone filtration)


  • Application
    • Buffer & Media  
    • Clarification  
  • Application Area
    Sterile filtration  


  • With or Without Receiver Flask
    BT (funnel only)  


  • Filter Diameter
    80 mm  
  • Filtration Area
    43 cm²  
  • Neck Size Bottle Top Units
    ⌀ 45 mm  


  • Device/Instrument Compatibility
    Sartolab® Multistation  

General Specifications

  • Device Format
    BT (funnel only)  

Materials of Construction

  • Housing Material
    Polystyrene (PS)  
  • Membrane Material
    Polyethersulfone (PES)  

Physicochemical Information

  • Pore Size
    0.22 µm  
  • Wettability

Product Information

  • Brand
    Sartolab® RF/BT  
  • Device Type
    Vacuum bottle top filters (funnel only)  
  • Pack Size
  • Packaging
    Single pouch packed  
  • Sample Type
    • Aqueous  
    • Solvents and harsh liquids according to chemical compatibility  


  • Delivery Condition
  • Sterilization Method
    E-Beam (beta) irradiation  


  • Filling Volume
    250 mL  
  • Funnel Volume
    250 mL  
  • Receiver Flask Volume
  • Volume
    250 mL  
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    Item no.


    Vacuum tube for MultiStation

    • Material: silicone
    • Outer diameter: 15 mm
    • Inner diameter: 7 mm
    • Length: 200 mm

  • Sartolab® Multistation Filtration Units Stand


    The Sartolab® Multistation is specially designed for simultaneous, hands-free filtration of up to six samples.

    Top Features of the Sartolab® Multistation

    • Simultaneous filtration of one to six samples with one vacuum source
    • Hands-free filtration
    • Time-saving, with no installation time for each filter unit before use

    Popular Applications for the Sartolab® Multistation

    • Hands-free, parallel filtration of up to six samples

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    Top Features of the Microsart® e.jet Fluid Pump

    • Small foot print – no need of suction flasks between pump and manifold
    • Simultaneous transfer of filtered liquid to waste
    • Constant flow rates and defined maximum vacuum

    Popular Applications for the Microsart® e.jet Fluid Pump

    • Filtration of liquid samples in Microbiological Quality Control labs