HALO 90 Å C8, 2 µm, 3.0 x 20mm

HALO 1000 Å C4, 2.7 µm, 0.5 x 50mm

HALO 160 Å C30, 2.7 µm, 1.0 x 100mm

HALO 90 Å PAH, 2.7 µm, 3.0 x 5mm, Guard Column 3p