http://www.macros.com.tw
Whatman® GD/X syringe filters
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.
6874-2504 PTFE membrane, pore size 0.45 μm, diam. 25 mm, non-sterile, pkg of 150 ea