HALO 400 A Diphenyl, 3.4 µm, 0.3 x 50mm

Poroshell HPH-C8, 3.0x150mm, 2.7um

HALO 160 Å C30, 2.7 µm, 4.6 x 150mm

HALO 400 Å C4, 3.4 µm, 4.6 x 5mm, Guard Column 3p