HALO 400 Å ES-C18, 3.4 µm, 4.6 x 30mm

HALO 1000 Å ES-C18, 2.7 µm, 4.6 x 5mm, Guard Colu

Poroshell HPH-C18, 4.6x50mm, 2.7um

HALO 400 Å C4, 3.4 µm, 4.6 x 150mm