HALO 1000 Å Diphenyl, 2.7 µm, 10.0 x 50mm

HALO 90 Å Phenyl-Hexyl, 2.7 µm, 2.1 x 150mm

HALO 90 Å C8, 2 µm, 2.1 x 250mm

HALO 400 Å Diphenyl, 3.4 µm, 2.1 x 5mm, Guard Col