Cogent Silica-C, 50 x 2,1mm, 4µm Back Catalog number: 40000-05P-2 Availability: In the manufacturer's stock Price on request - + Recommended 720133.46 EC 250/4.6 NUCLEOSIL 100-3 C18 645,14 € 7992518-484 Superspher 100 RP-18, 4um, 250 x 4mm 1 327,22 € A2013250X020 Polaris 5 NH2 250 x 2.0mm 848,09 €