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 79678 PRP-C18,12-20 µm,21.2x250m Price on request 79299 GUARD ANALYTICAL SILICA C1 Price on request 79366 PRP-1 5µm 2.1x150mm Price on request