HALO 90 Å ES-CN, 2.7 µm, 4.6 x 50mm

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

HALO 400 A Diphenyl, 3.4 µm, 3.0 x 20mm

HALO 160 Å C30, 2.7 µm, 3.0 x 150mm