Advanced Materials Technology HPLC Guard Column HALO C4, 4000 Å, 3.4 μm, 2.1 x 5 mm, 3 pc/PAK

C4 and sterically-protected ES-C18 phases Excellent high temperature stability (up to 90 ˚C) for improved peak shape and recovery 2 μm inlet frit Pressure limit, 600 bar/9000 psi