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Cytiva Whatman™ Glass Microfiber Prefilter, 2μm Particle Retention Rating

Multilayer graded density filters for rapid and efficient filtration of samples with high solids content. Whatman™ Glass Microfiber Prefilters are designed with a coarse glass filter top layer (10μm) meshed with a finer layer. The multigrade glass filter traps larger particles in its pores of the coarse layer, medium-sized particles in the interface meshing, and smaller particles in the interstices of the fine layer.

Manufacturer:  Cytiva 1842090

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Catalog No. 09-874-86

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  • Can filter nearly twice as much sample volume as that of a single-density prefilter
  • Compared to an unprotected membrane, three to seven times greater sample volume can be filtered
  • Higher particulate loading capacity and faster flow rates than uniform prefilters
  • Excellent particle retention (both large and small particles)
  • 100% borosilicate glass, binder-free
  • Extends life of final filter membrane


1.5 s/100 ml/1.56 cm2
Prefilter with high loading capacity and good flow rates.
0.029 in.
3.5 in.
GE’s Whatman GMF 150 prefilters are multilayer graded density filters for rapid and efficient filtration of samples with high solids content.
Borosilicate Glass
1.5 sec./100mL/1.56cm2
Grade GMF 150
750 μm
887 mL/min
90 mm
Product Certifications


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