HALO 160A PCS C18, 2.7um 2.1mm x 50mm

HALO 1000 Å ES-C18, 2.7 µm, 2.1 x 30mm

Halo 2.7um 160A C30

HALO 90 Å AQ-C18, 2.7 µm, 3.0 x 5mm, Guard Column