• USA Home
  • Z277444 - Whatman® GD/X syringe filters

Z277444 Aldrich

Whatman® GD/X syringe filters

polypropylene membrane, pore size 0.45 μm, diam. 25 mm

Synonym: Whatman filter, syringe filter, syringe filters



Related Categories Analytical/Chromatography, Filtration Supplies, GD/X syringe filters, HPLC, HPLC Accessories,
material   polypropylene housing
  polypropylene membrane
sterility   non-sterile
feature   glass fiber prefilter
packaging   pkg of 150 ea
mfr. no.   Whatman Article No., 28420522 (US reference)
  Whatman, 6878-2504
diam.   25 mm
volume   ≤25 mL
pore size   0.45 μm
fitting   inlet female Luer (lock)
  outlet male Luer


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

Other Notes

Global SIAL customers (excluding Japan) can now order any product from the GE Healthcare Life Sciences consumables portfolio (prepack only) using GE′s product numbering system.

The legacy GE Whatman products that use the SIAL "Z" product numbering system will be discontinued and directly replaced with a product number using a "WHA" prefix plus the GE product code. For reference, the legacy "Z" product number is identified as a synonym on the "WHA" product number listing.

This product has been replaced by WHA68782504-ALDRICH | Whatman GD/X syringe filters, polypropylene membrane, pore size 0.45 μm, diam. 25 mm


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

Legal Information

Whatman is a registered trademark of GE Healthcare

Price and Availability

All labs need water
Safety & Documentation

Safety Information

Safety Information for this product is unavailable at this time.


Certificate of Analysis

Protocols & Articles

Related Content

Supelco HPLC Calculator for Isocratic or Gradient Method Transfer

Calculates conditions for transfer of an isocratic or gradient method from one HPLC column to another. Allows method scaling from microbore through preparative column range. Calculates time and solve...
Keywords: High performance liquid chromatography

Related Products

replaced by

Product #


Add to Cart

WHA68782504 Whatman® GD/X syringe filters, polypropylene membrane, pore size 0.45 μm, diam. 25 mm

Technical Service:

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Bulk Ordering & Pricing:

Need larger quantities for your development, manufacturing or research applications?