HALO 160 Å ES-C18, 2.7 µm, 1.0 x 50mm

HALO 160 Å ES-C18, 2.7 µm, 10.0 x 100mm

Poroshell 120,SB-C18, 2.1x30mm,2.7um

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