These filters are designed to facilitate manual filtration of
hard-to-filter samples greater than 10mL
These filters are
designed to facilitate manual filtration of hard-to-filter samples greater than
10mL. They are available in a wide variety of filter choices with a
polypropylene housing and utilize the most advanced construction methods and
design features available today. This level of engineering provides for the finest
disposable filtration devices possible. Contain a unique prefiltration stack
of Whatman Multigrade GMF 150 (10:1µm) and Grade GF/F (0.7µm) prefilters.
Multigrade GMF 150 is a combination of two glass microfiber filters in one.
Manufactured from 100% borosilicate glass, it is constructed of a coarse layer
on top, meshed with a fine layer below. The Grade GF/F filter will retain fine
particles down to 0.7µm. These pre-filters, combined with the available
retentate space with the device, allow you to filter even the most difficult
samples with less hand force than ever before possible. Compared to the
capacity of an unprotected membrane, the volume of sample filtered can be three
to seven times greater.