HALO 90 Å Phenyl-Hexyl, 5 µm, 2.1 x 20mm

HALO 160 Å C30, 2.7 µm, 2.1 x 50mm

Poroshell 120,EC-CN,2.1x50mm,2.7um

HALO 400 Å C4, 3.4 µm, 4.6 x 5mm, Guard Column 3p