HALO 1000 Å Diphenyl, 2.7 µm, 1.0 x 50mm

HALO 400 A Diphenyl, 3.4 µm, 3.0 x 75mm

HALO 160 Å ES-C18, 2.7 µm, 2.1 x 5mm, Guard Colum

HALO 90 A C18, 2.7 µm, 1.5 x 100mm