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Johnson Wet Strengthened Medium Flow Filter Papers - 150mm Diameter - Pack of 100

by Johnson Test Papers

Product code: HC1683655

£6.74 exc. VAT

Designed for reliable filtration in science classrooms, these Johnson wet-strengthened filter papers are ideal for practical experiments in primary, secondary, and college settings. Their medium flow rate and high mechanical strength make them suitable for a range of laboratory tasks, including filtering strong alkaline or acid solutions.

  • Pack of 100 qualitative filter papers
  • 150mm diameter, grade 321
  • Thickness: 0.19mm
  • Pore size: 4–7µm
  • Made from majority alpha-cellulose for fibre-free filtration
  • High wet strength for residue removal with spatula or water jet

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