Obelisc R Guard Column, 10 x 2,1mm, 5µm, pk/2 Back Catalog number: OR-21.G.0510 Manufacturer: SIELC Technologies Availability: 2 weeks Price on request - + Recommended CP28253 ChromSpher 5 Si 250 x 4.6mm 865,34 € A2000MG MetaGuard 4.6mm Polaris 5 C18-A 362,45 € 959961-902K Eclipse Plus C18, 4.6x100mm, 3.5um, MVK 2 011,57 €