Whatman 1823-090 Glass Microfiber Binder Free Filter, 2.7 Micron, 2.2 s/100mL Flow Rate, Grade GF/D, 9.0cm Diameter (Pack of 25)

The Whatman GF/D glass microfiber filter is considerably faster in flow rate and overall filtration speed than Cellulose filter papers of similar particle retention. The filter is thick and consequently exhibits a high loading capacity. Designed as a membrane prefilter and available in sizes to fit most holders. GF/D will provide good protection for finely retentive membranes. Can be used in combination with GF/B to provide very efficient graded prefilter protection for membranes. Retention: 2.7µm. Diameter: 9.0cm. 25/Pack. Whatman #: 1823-090.