Guard Holder for 1mm, 2mm, 3mm, 4,6mm columns Back Catalog number: GCH01S Availability: In the manufacturer's stock Price on request - + Recommended 763434.30 EC 100/3 NUCLEOSHELL BB RP 18, 2.7 µm 827,86 € 760625.20 EC 250/2 NUCLEODUR Pi2, 5 µm 750,25 € 720099.46 EC 250/4.6 NUCLEOSIL 100-5 491,54 €