Aries Filter Works
Aries (AF-20-4010-BB) 20"x4.5" Big Blue Mixed Bed DI Lowers TDS Filter
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Mixed Bed Deionizing filters are high-capacity, semiconductor grade resin cartridges used typically used in medical laboratories, cosmetics, and circuit board printing applications as well as marine/aquarium water. These are used to lower the levels of the total dissolved solids (TDS).