HALO 400 Å C4, 3.4 µm, 2.1 x 150mm

HALO 1000 Å Diphenyl, 2.7 µm, 4.6 x 5mm, Guard Co

HALO 1000 Å ES-C18, 2.7 µm, 2.1 x 150mm

HALO 160 Å ES-C18, 2.0 µm, 1.5 X 150mm