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Whatman® GD/X syringe filters

glass microfiber membran, pore size 0.45 μm, diam. 25 mm, non-sterile, pk of 150 ea

Synonym: Whatman filter, Z277347, syringe filter, syringe filters

  •  NACRES NB.24



Related Categories Analytical/Chromatography, Filtration Supplies, GD/X syringe filters, Glass Fiber Membrane Syringe Filters, HPLC Accessories,
material   glass microfiber membrane (glass-fiber pre-filter)
  polypropylene housing (pigment-free)
sterility   non-sterile
feature   glass fiber prefilter
packaging   pk of 150 ea
mfr. no.   Whatman Article No., 28420546 (US reference)
  Whatman, 6894-2504
diam.   25 mm
volume   ≤25 mL
pore size   0.45 μm
fitting   female Luer inlet (lock)
  male Luer outlet


General description

The GD/X filter contains a unique prefiltration stack of 100% borosilicate glass. The prefilter will retain fine particles down to 0.7 μm, allowing difficult sample filtration with less hand force.

The volume of the sample filtered is 3-7 times greater than an unprotected membrane. PP housing. Syringe filters can be autoclaved.


Cellulose Acetate:
for biological solutions, high-loading capacity, and low-protein-binding
Nylon: for aqueous and aqueous organics
Polyethersulfone: for serum, plasma, and tissue culture solutions
Polypropylene: high flow for aqueous and organics
Polysulfone: low-protein-adsorption for serums and plasma
PTFE: chemically inert, will stop aqueous aerosols in gas streams
PVDF: the most suitable membrane for HPLC
Glass microfiber: borosilicate with high-load capacity


Suitable for filtering environmental and food analysis samples. Suitable for particulate laden sample preparation.

Other Notes

Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.

Legal Information

Whatman is a registered trademark of Cytiva

Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


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