Halo 3.4um, 400A, C4 Back Catalog number: 943410-214 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92711-702 HALO 1000 Å ES-C18, 2.7 µm, 1.0 x 150mm Price on request 91813-322 HALO 90 Å AQ-C18, 2 µm, 3.0 x 30mm Price on request 95810-704 HALO 90 Å ES-CN, 5 µm, 10.0 x 150mm Price on request