Whatman 990010112 Сone folded filter papers, Grade 40 125MM 1000/ PK

Grade 40 filter papers are designed for routine qualitative filtration, especially when separating medium to fine particles from liquids. They are commonly used in laboratories, environmental testing, food analysis, and general sample preparation.

Cone folded filters are ready-to-use and fit directly into conical funnels, eliminating manual folding. This saves time and improves workflow efficiency, particularly when performing repetitive or high-volume filtration tasks.

Grade 40 offers medium retention with relatively fast flow rates, making it suitable for applications that require balanced filtration speed and clarity. It is ideal for routine lab work where neither extremely fine nor coarse filtration is required.

This product features a 125 mm diameter, Grade 40 cellulose filter paper, and cone-folded format, supplied in bulk packs of 1000 filters. It is designed to fit standard laboratory funnels and support high-throughput workflows.

Pre-folded filters provide improved flow rates and higher loading capacity compared to flat papers, reducing clogging and speeding up filtration. They also ensure consistent folding and positioning, leading to more reliable results in routine analysis.