The ReproSil SEC series are silica gel based columns for aqueous size exclusion chromatography (gel filtration chromatography). The columns can be used in a molecular range from 500 - 1.250.000 Da.
| Phase | Particle size / μm | Molecular range / Da | USP Code |
| 50 SEC | 5 | 500 - 10.000 | L59 |
| 125 SEC | 3, 5, 10 | 5.000 - 100.000 | L59 |
| 200 SEC | 1.9, 5 | 10.000 - 500.000 | L59 |
| 200 SEC-2 | 1.9, 3, 5, 10 | 10.000 - 500.000 | L59 |
| 300 SEC | 3, 5 | 10.000 - 1.000.000 | L59 |
| 4000 SEC | 5 | 20.000 - 500.000 | L59 |
| 5000 SEC | 5 | 150.000 - 1.250.000 | L59 |