A widely used standard grade filter paper for routine applications with medium retention and flow rate.

- Pore Size: 1.5μm
- High retention, Fast flow

Slightly more retentive than Grade 1 with a corresponding increase in filtration time (i.e., slightly slower filtration speed).

A standard grade filter used in qualitative analytical techniques to determine and identify materials. For use in büchner funnels.

- 1.0μm Pore size
- 3x thicker than GF/A

Fast flow & retention of coarse precipitates

- Pore size: 1.2μm
- Good flow, For suspended solid in wastewater

Finest particle retention)

Fastest flow, For coarse retention

Medium flow & retention rate

- High flow rate