Whatman 10311651 Filter Circles, 240mm Dia, Folded Prepleated Grade 595, 100/Pk

This filter paper is widely used for routine laboratory filtration, including separating particles from liquids in environmental testing, food analysis, and general chemical sample preparation. Its versatility makes it a go-to choice for everyday lab applications.

Grade 595 offers medium-to-fine particle retention in the range of approximately 4–7 µm, allowing it to capture fine precipitates while still maintaining a relatively fast filtration speed.

Prepleated filters provide increased surface area and improved flow rate, which helps reduce filtration time and delay clogging. They also eliminate the need for manual folding, saving time in repetitive lab workflows.

A 240 mm filter circle offers a larger filtration surface, making it ideal for processing higher sample volumes or use with large funnel systems. This improves throughput and reduces the need for multiple filtration steps.

Grade 595 is a thin, medium-fast qualitative filter paper that balances filtration speed with particle retention. It is faster than fine retention grades while still capturing smaller particles than coarse filter papers, making it suitable for general-purpose use.