HALO 90 Å AQ-C18, 2.7 µm, 0.5 x 50mm

HALO 90 Å Phenyl-Hexyl, 2.7 µm, 2.1 x 50mm

Poroshell 120,UHPLC Guard,Phe-Hex,4.6mm

HALO 160A PCS C18, 2.7um Guard Column 3.0mm x 5mm