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110 mm: AHL4.104.110
125 mm: AHL4.104.125
150 mm: AHL4.104.150
185 mm: AHL4.104.185
This grade has a somewhat higher flowrate than grade 393 and is a standard choice for filtering fine particles.
- Wet-Strenghtened Grade: 391
- Rentention: 2-3um
- Filtration Speed Herzberg sec/100 mL: 1200s
- Filtrations Speed sec/10 ml: 180s
- Loading Capacity: Medium
- Ash grade: <0.01%
- Replaces Munktell 00M
