Halo 2.7um 160A ES-C18

HALO 90 Å Biphenyl, 2.7 µm, 2.1 x 5mm, Guard Colu

HALO 160 Å ES-C18, 2.7 µm, 3.0 x 5mm, Guard Colum

HALO 90 Å C8, 2 µm, 3.0 x 100mm