GE Whatman 1823-110 Borosilicate Glass Microfiber Filter, Binder Free, Grade GF/D, Circle, 2.7µm Pore Size, 110mm Diameter (Pack of 25)

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.