4 Stage RODI | Aquarium Reverse Osmosis System | Triple Housing Unit - Drop In Style with Refillable DI Resin Chamber
Finerfilters 4 Stage Reverse Osmosis Unit with DI Chamber Stage 1: Polypropylene sediment pre-filter cartridge removes sand, rust, silt and other sediments up to 5 Micron Stage 2: Activated carbon block is formed in especially pressured, high-density blocks to gain a high adsorption rate of chlorine, other chemicals and multiparticle organic substances. Stage 3: Reverse Osmosis Membrane Stage 4: Refillable DI resin drop-in cartridge, used after the RO process to further reduce your TDS. It is recommended that filters should be changed every 6 months, resin 3-6 months and membrane every 1-3 years depending on water hardness.