HALO 1000 Å Diphenyl, 2.7 µm, 0.5 x 100mm

HALO 90 Å ES-CN, 2.7 µm, 2.1 x 150mm

HALO 160 Å ES-CN, 5 µm, 10.0 x 150mm

HALO 90 Å Phenyl-Hexyl, 5 µm, 3.0 x 5mm, Guard Co