HALO 1000 Å C4, 2.7 µm, 0.5 x 150mm

HALO 90 Å C18, 2.7 µm, 1.0 x 50mm

HALO 90 Å C8, 2 µm, 2.1 x 20mm

HALO 90 Å PAH, 2.7 µm, 2.1 x 5mm, Guard Column 3p