HALO 400 Å Diphenyl, 3.4 µm, 2.1 x 50mm

HALO 160 Å Phenyl-Hexyl, 2.7 µm, 4.6 x 5mm, Guard

HALO 1000 Å ES-C18, 2.7 µm, 3.0 x 75mm

Poroshell HPH-C18,4.6x 50mm,2.7um,T