Halo 2.7um, 1000A, ES-C18

HALO 400 Å C4, 3.4 µm, 2.1 x 5mm, Guard Column 3p

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

HALO 160 Å ES-C18, 2.7 µm, 3.0 x 5mm, Guard Colum