The most widely used qualitative filter paper for routine applications. Medium porosity and flow rate. 100 circles packed in a cardboard box. Additional Info: Filter Paper, Circular, Grade 1, 9cm, Pk/100 Package Size(L x W x H): 3.8 X 3.8 X 0.8 (IN) Categories: Filtration, Filter Papers HTS Code: 4823.20.9000 UNSPSC: 4.01618e+007 Country Of Origin: INDIA