Filter paper circles

Filter paper circles are pre-cut round papers for gravity and vacuum filtration in funnels and Büchner assemblies. Chemistry, QC and environmental laboratories use filter paper circles for clarifying solutions, collecting precipitates and preparing samples for analysis.

With 807 Macherey-Nagel listings, the range spans qualitative and other grades in a wide run of diameters. The MN 640 we grade, for example, is listed in 5.5 cm, 7 cm, 9 cm and 11 cm circles in packs of 100, and many other MN grades follow the same diameter steps.

Choose the grade by retention and flow speed for the precipitate you are handling, then the diameter to fit your funnel; a circle should sit just below the funnel rim. Lancetech Limited supplies Macherey-Nagel filter paper circles to UK laboratories and can quote on volume orders.