Whatman™ Grade 4 Qualitative Filter Paper

Filters and retains course particles for monitoring air pollution. Whatman™ Grade 4 Qualitative Filter Paper can also be used for routine clean-up of biological fluids.

Brand: Whatman™

Manufacturer Part Number: 1004-050

X100 GR. 4 5CM/100

UNSPSC: 41120000

Code: A0

Additional Details:
Additional Details: Weight: 0.02000kg

Product Code. 11300454

Quantity Price
1 £7.21 / Pack of 100
Estimated Shipment
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Description and Specification


Quantity 100Pack
Diameter (Metric) 50mm
Grade 4
Material Cellulose
Thickness (Metric) 210μm
Pore Size (Metric) 20 to 25μm
Porosity Medium
Particle Retention Coarse
Flow Rate Fast
Format Circle

  • Extremely fast filtering with excellent retention of coarse particles and gelatinous precipitates
  • Useful as a rapid filter for routine clean-up of biological fluids or organic extracts during analysis.
  • Used when high flow rates in air pollution monitoring are required and the collection of fine particles is not critical.