Filter Disc, bi-plane, 90 mm, Por. 4 Thickness 5.5 mm ± 0.2 mm

VitraPOR® glass filter disc, Borosilicate 3.3. Ø 90 mm, porosity 4, thickness 5.5 mm (+/- 0.2 mm tolerance). The filter disc faces are precisely ground to tight tolerances and flat surfaces, suitable for specific installation requirements.