HALO 90 Å Biphenyl, 2.7 µm, 1.0 x 50mm

HALO 1000 Å Diphenyl, 2.7 µm, 1.0 x 150mm

HALO 160 Å C30, 2.7 µm, 4.6 x 5mm, Guard Column 3

HALO 160A PCS C18, 2.7um Guard Column 2.1mm x 5mm