O-Ring, Viton, 2,2mm x 1,6mm Micromass Nr. 5711295 Equivalent to Waters part no.: 700000454 and Micromass part no.: 5711295 For Waters/Micromass Massenspektrometer LCT Premier, LCT Premier XE, Q-Tof II Mass Spectrometer, Q-Tof micro Mass Spectrometer