HALO Guard Column Holder Back Catalog number: 94900-001 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 91823-416 HALO 90 Å LPH-C18, 2.0 µm, 3.0 X 50mm Price on request 92812-707 HALO 90 Å RP-Amide, 2.7 µm, 2.1 x 150mm Price on request 91812-206 HALO 90 Å Phenyl-Hexyl, 2 µm, 2.1 x 20mm Price on request