Grained, with medium fast flow rate and medium retention. A universal, pre-folded filter paper, e.g. used for the filtration of extracts, oils, beer, syrups etc., also applied in filter presses or for the aspiration of liquids. Filtration speed: 55 herzberg. Typical thickness: 170µm. Basis weight: 75g/m². Retention: 7-12µm. Diameter: 320mm. 100/Pack. Whatman #: 10334352.