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Qualitative Filters - grade 1291
Grade 1291 - fine pored, very dense, very low rate of filtration.
Fine-grained precipitates cold-precipitated barium sulphate, meta-stannic acid.
| Basis Weight | 84 g/m2 |
| Filtration velocity: | 10 ml / 180 seconds |
| Typical Pore Size: | 2 - 3 µm |
| Similar to: | S&S 602 h, M-N 619 de |
| Diam. | Code | Grade/Description | Pack of |
| 55 mm | FTR 3.209.055 | 1291 / Filter discs. | 100 |
| 70 mm | FTR 3.209.070 | 1291 / Filter discs. | 100 |
| 90 mm | FTR 3.209.090 | 1291 / Filter discs. | 100 |
| 110 mm | FTR 3.209.110 | 1291 / Filter discs. | 100 |
| 125 mm | FTR 3.209.125 | 1291 / Filter discs. | 100 |
| 150 mm | FTR 3.209.150 | 1291 / Filter discs. | 100 |
| 185 mm | FTR 3.209.185 | 1291 / Filter discs. | 100 |
| 240 mm | FTR 3.209.240 | 1291 / Filter discs. | 100 |
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