Qualitative Filter Paper, Diameter 9 cm, Material Cellulose, Porosity Slow, Minimum Pore Size 2 micron, Maximum Pore Size 2.7 micron, Thickness 0.177 mm, Fluted No, Grade 50, For Use With Liquids or Air, 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): []