HALO 90 Å Biphenyl, 2.7 µm, 2.1 x 100mm

HALO 90 Å C8, 2.7 µm, 3.0 x 100mm

Poroshell HPH-C8, 2.1x50mm, 2.7um

HALO 160 Å C30, 2.7 µm, 2.1 x 5mm, Guard Column 3