Sartolab® RF 50 PES Non Sterile Vacuum Filtration Units for 50 mL samples, box of 96 pieces

Vacuum filtration units are designed for the convenient clarification & sterile filtration of tissue culture media and components, biological fluids, and other aqueous solutions. Sartolab® RF|BT vacuum filtration units are available as ready-to-use disposable 50 mL, 150 mL, 250 mL, 500 mL and 1,000 mL systems including receiver bottles, or as Bottle-Top-only system in 150 mL, 250 mL, 500 mL and 1000 mL.

Sartolab® RF|BT units can be used in combination with the Sartolab® MultiStation for hands-free parallel filtration of up to 6 samples.

Price (USD):
Item No.: 

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

Sartolab® RF | BT vacuum filtration units are convenient filtration units designed for research purposes and, therefore, for the filtration of small volumes from 50 mL to 1 L. Sartolab® RF as a complete system includes a receiver flask to the filtration funnel. Sartolab® BT is a bottle top filter (filtration funnel) without a receiver flask, enabling customers to use their own receiver flasks and/or to expand the filtration capacity, depending on the particle load of the filtered liquid, by filling more than one receiver flask.

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


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


  • With or Without Receiver Flask
    RF (with receiver flask)  


  • Filter Diameter
    58.5 mm  
  • Filtration Area
    21 cm²  
  • Neck Size Bottle Top Units
    ⌀ 32 mm  


  • Device/Instrument Compatibility
    Sartolab® Multistation  

General Specifications

  • Device Format
    RF (with receiver flask)  

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 filtration units (with receiver flask)  
  • Pack Size
  • Packaging
    Bulk packed  
  • Sample Type
    • Aqueous  
    • Solvents and harsh liquids according to chemical compatibility  


  • Delivery Condition
  • Sterilization Method


  • Filling Volume
    50 mL  
  • Funnel Volume
    50 mL  
  • Receiver Flask Volume
    50 mL (conical tube)  
  • Volume
    50 mL  
  • Glass Microfiber Filters / Grade MGA


    Binder free glass microfiber filters are suitable for analytical and gravimetric analyses. The filters FT-3-1101-058-5 are also used as prefilters for the Sartolab® RF 50, 50 mL vacuum filtration units.

  • 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

  • Vacuum tube for MultiStation
    Item no.


    Vacuum tube for MultiStation

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

  • Microsart® e.jet Laboratory Liquid Transfer Pump


    The Microsart® e.jet Fluid Pump is a small, state-of-the-art liquid transfer pump for optimal vacuum filtration in your Microbiological QC lab.

    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