HALO 160 Å C30, 2.7 µm, 3.0 x 250mm

Poroshell 120,EC-C18,4.6x250mm,2.7um

HALO 1000 Å ES-C18, 2.7 µm, 0.3 x 150mm

HALO 90 Å AQ-C18, 2 µm, 2.1 x 5mm, Guard Column 3