Halo 2um, 90A, PFP Back Catalog number: 941810-209 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92114-406 HALO 160 Å Phenyl-Hexyl, 2.7 µm, 4.6 x 50mm Price on request 943410-214 Halo 3.4um, 400A, C4 Price on request 92814-122 HALO 90 Å AQ-C18, 2.7 µm, 4.6 x 5mm, Guard Column Price on request