The range of wet strengthened filters offers the same low ash content as quantitative filters but are also more resistant when they are wet thanks to the binder used for its production. They are especially recommended for acid filtration. Very fast filtration hardened quantitative filter paper for a better resistance when wet.

• Equivalent to Whatman grade 541
• Recommended for very fast filtration
• Weight: 84g/m²
• Thickness: 0.2mm
• Pore size: 25 - 30µm
• Filtration speed: 9s
• Supplied as plain discs