Qualitative Filter Paper, Diameter 11 cm, Material Cellulose, Porosity Fast, Minimum Pore Size 20 micron, Maximum Pore Size 20 micron, Thickness 0.22 mm, Fluted No, Grade 41, For Use With Gas, Liquids, Overall Length Not Applicable, Overall Width Not Applicable, Standards FDA, Shape Disc, Package Quantity 100. This item has been restricted from sale in the following state (s): []