This Whatman GF/C glass microfiber filter combines fine particle retention with good flow rate. It is the standard filter in many parts of the world for the collection of suspended solids in potable water and natural and industrial wastes. It provides fast and efficient clarification of aqueous liquids containing low to medium levels of fine particulates. This filter is widely used for cell harvesting, liquid scintillation counting and binding assays where more loading capacity is required. Retention: 1.2µm. Diameter: 4.7cm. 100/Pack. Whatman #: 1822-047.