ZETA PLUS™ 40Q SERIES PURIFIER CARTRIDGES FILTER METALLIC ION CONTAMINANTS FROM HIGH PURITY CHEMICALS SUCH AS RESINS, PHOTORESISTS, AND SOLVENTS IN A SINGLE PASS. THE PURIFIER CONTAINS ION EXCHANGE GROUPS BONDED WITHIN A POROUS DEPTH MEDIA STRUCTURE, ENHANCING SURFACE AREA AND PROVIDING METALLIC CONTAMINANT REDUCTION TO SINGLE DIGIT PPB LEVELS.