HALO 90 Å PFP, 5 µm, 3.0 x 50mm

HALO 90 Å C8, 2 µm, 3.0 x 30mm

HALO 1000 Å Diphenyl, 2.7 µm, 4.6 x 5mm, Guard Co

HALO 90 Å C8, 5 µm, 3.0 x 5mm, Guard Column 3pk