AquaCera CeraMetix 5" Filter Replacement Filter AquaMetix is made from the highest quality NSF component certified (ANSI 61) coconut shell based activated carbon and other superior adsorbent materials including B2 (ANSI 61). Filters chlorine, chloramine, volatile organic compounds, MTBE, lead, mercury, asbestos, arsenic and fluoride. The cleanable ceramic shell is designed to remove suspended solids, pathogenic bacteria and cysts.