The GD/X™ range is specifically designed for high particulate loaded samples. Constructed of a pigment-free polypropylene housing with a prefiltration stack of Whatman GMF 150 (graded density) and GF/F glass microfiber media, these filters eliminate sample contamination and allow you to filter even the most difficult samples with less hand pressure. GD/X syringe filters can process three to seven times more sample volume than standard syringe filters.
GMF 150 and GF/F are produced from 100% borosilicate glass microfiber. The innovative, graded density GMF 150 medium has a coarse top layer meshed with a fine bottom layer that retains particles to 1.0 µm. A GF/F filter then retains particles down to 0.7 µm. The prefilter stack ends with a final membrane.
GD/X filter construction facilitates exceptional loading capacity with fast flow rates. This prevents the build up of back pressure typically caused by the blocking of an unprotected membrane.
Polypropylene (pigment free)
6.9 bar (100 psi)
5.2 bar (75 psi)
Volume 'Hold Up' - Full housing
- with air purge
50 µl (approx)
250 µl (approx)
21.6 x 29.8 mm
20.8 x 29.8 mm
3 g (approx)
Flow should enter from the inlet
Female luer lock
Autoclave at 121ºC (131ºC max) at 1 bar (15 psi) for 20 minutes
Glass microfiber prefiltration media
100% Borosilicate Glass Fiber
GMF 150 10 µm: 1 µm
GF/F 0.7 µm