Whatman 1002-270 Filter Circles, 270mm Dia, Grade 2, 100/pk (PN:1002-270)

GR 2 27.0CM 100/PK
Qualitative Filter Papers - Standard Grades Grade 2 circles, 270 mm, 100/pk, Slightly more retentive and absorbant than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed). 

Also, check out the Ahlstrom 0540-1850 Quantitative Filter Paper, Grade 54, 185 mm