Cogent Silica-C, 50 x 2,1mm, 4µm Back Catalog number: 40000-05P-2 Availability: In the manufacturer's stock Price on request - + Recommended 760080.40 EC 50/4 NUCLEODUR C18Gravity, 3 µm 708,86 € M05CLA05 Kromasil 100-5-C18 4.6 x 50mm Price on request 761925.30 EC 4/3 NUCLEODUR C18 HTec, 1.8 µm 156,26 €