Qualitative Filter Paper, Diameter 4.25 cm, Material Cellulose, Porosity Medium, Minimum Pore Size 8 micron, Maximum Pore Size 8 micron, Thickness 0.19 mm, Fluted No, Grade 2, For Use With Liquids, Overall Length Not Applicable, Overall Width Not Applicable, Standards ASTM E2187-09, Shape Disc, Package Quantity 100