| RG-AA16 | Kjeldahl Tablets - 5g Potassium Sulfate 0.5g Copper II Sulfate where a lot of Copper is required | 1000pk | 632 € | reageco | human |
| RG-AA165 | Kjeldahl Tablets - 5g Potassium Sulfate 0.5g Copper II Sulfate where a lot of Copper is required | 500pk | 373 € | reageco | human |