Halo 2um, 90A, AQ-C18 Back Catalog number: 941810-222 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92813-406 HALO 90 Å Phenyl-Hexyl, 2.7 µm, 3.0 x 50mm Price on request 94315-426 HALO 400 A Diphenyl, 3.4 µm, 0.5 x 50mm Price on request 93413-114 HALO 400 Å C4, 3.4 µm, 3.0 x 5mm, Guard Column 3p Price on request