Qualitative Filter Paper, Diameter 18.5 cm, Material Cellulose, Porosity Fast, Minimum Pore Size 25 micron, Maximum Pore Size 25 micron, Thickness 0.21 mm, Fluted No, Grade 4, 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): []