Halo 2um, 90A, AQ-C18 Back Catalog number: 941810-222 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92122-902 HALO 160 Å ES-C18, 2.7 µm, 2.1 x 250mm Price on request 93413-726 HALO 400 A Diphenyl, 3.4 µm, 3.0 x 150mm Price on request 91122-102 HALO 160 Å ES-C18, 2 µm, 2.1 x 5mm, Guard Column Price on request