CarbonBlock TS3 – Broadband contaminant removal including difficult to remove contaminants such as nitrates, fluorides and arsenic.
Cerametix – features a diatomaceous core with an carbon block interior and is more appropriate for well water or for city water systems that call for boil alerts due to e-coli or for water containing sediment or iron.
Aquametix – has a larger carbon block core featuring more capacity for filtering out contaminants.