Guard Holder for 1mm, 2mm, 3mm, 4,6mm columns Back Catalog number: GCH01S Availability: In the manufacturer's stock Price on request - + Recommended 760400.40 EC 50/4 NUCLEODUR C18 Isis, 3 µm 708,86 € A2006250X020 Polaris 5 Amide-C18 250 x 2.0mm 833,95 € 860975-914 SB-Aq, 2.1 x 50mm, 5micron 492,83 €