HALO 1000 Å Diphenyl, 2.7 µm, 4.6 x 50mm

HALO 400 Å ES-C18, 3.4 µm, 2.1 x 5mm, Guard Colum

Poroshell 120 SB-C18,3x150mm,1.9um,T

HALO 90 Å LPH-C18, 2.7 µm, 4.6 X 5mm, 3pk.