Macherey-Nagel Glass fiber filter, round, MN GF-3, 90 mm, 0,6 μm, 1 pc/PAK

equivalent to Whatman/Schleicher Schüll article No. 1822090 MN GF‑3 is slightly more retentive than MN GF‑1. This binder-free glass fiber filter paper is used for the collection of suspended solids in potable water as well as natural and industrial waste water in many parts of the world.