HALO 1000 Å ES-C18, 2.7 µm, 4.6 x 20mm

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

HALO 90 Å PAH, 2.7 µm, 2.1 x 5mm, Guard Column 3p

HALO 90 Å C18, 2 µm, 3.0 x 30mm