Halo 2um, 90A, AQ-C18 Back Catalog number: 941810-222 Manufacturer: Advanced Materials Technology Availability: In the manufacturer's stock Price on request - + Recommended 92123-102 HALO 160 Å ES-C18, 2.7 µm, 3.0 x 5mm, Guard Colum Price on request 91813-102 HALO 90 Å C18, 2 µm, 3.0 x 5mm, Guard Column 3pk Price on request 92114-717 HALO 160A PCS C18, 2.7um 4.6mm x 150mm Price on request