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Sartorius™ Glass Fiber (GF) Pre-filters

Use as a depth filter for larger totally filterable volumes. Sartorius™ Glass Fiber (GF) Pre-filters are made of borosilicate glass microfibers and are ideal for use as a pre-filter in clarification and sterile filtration. Available in a range of filter disc diameters.

Manufacturer:  Sartorius™ 13400127K

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Catalog No. 14-555-438

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The major use of the glass microfiber filter disc is as a depth prefilter in clarification and sterile filtration. As a prefilter, it is placed directly on top of a membrane filter. The prefilter diameter must be the one specified for the chosen holder; larger diameters will intrude under the sealing ring of the holder and cause leakage.
  • Manufactured with a hydrophillic acrylic binder for defined strength
  • Has a high particle loading capacity for filtering relatively dirty liquids
  • Mechanically and chemically stable, with a temperature resistance up to 220°C
  • Other filter characteristics:
    • Weight: 73g/m2
    • Extractable content in isopropanol: 1.54%
    • Extractable content in water: 1.12%
    • Pressure drop at 5.3cm/sec: 0.363kPa
    • Total throughput at 1bar: 320mL/min./cm2


Borosilicate Microfiber Glass
Used as a depth prefilter high particle loading capacity
Filter Disc
295 to 381mL/min.
5 in.


  • Sartorius , Fisher Scientific , Fisherbrand
    Buy $1,500 or more in Sartorius products and get a Sartorius Tacta Pipette Multipack at no additional cost.


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