HALO 160 Å ES-C18, 2.7 µm, 2.1 x 150mm

HALO 90 Å PFP, 2.7 µm, 4.6 x 5mm, Guard Column 3p

HALO 400 Å ES-C18, 3.4 µm, 4.6 x 75mm

HALO 90A PCS C18, 2.7um Guard Column 4.6mm x 5mm