Halo 3.4um, 400A, C4 Back Catalog number: 943410-214 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92814-509 HALO 90 Å PFP, 2.7 µm, 4.6 x 75mm Price on request 92813-622 HALO 90 Å AQ-C18, 2.7 µm, 3.0 x 100mm Price on request 95814-111 HALO 90 Å Biphenyl, 5 µm, 4.6 x 5mm, Guard Column Price on request