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High Rejection Reverse Osmosis (RO) Membrane
such as chlorine
2nd Stage - UDF Granular Activated Carbon
silt and sand
Refillable Aquarium Reef- Deionization Resin Cartridge - 10" High Rejection Reverse Osmosis (RO)Fits Standard 10" Housing for Revere Osmosis Water Systems When the filters needs to be replaced the resin will start turning brown. Includes the Cartridge & The color changing DI Resin The cartridge can be refilled when the DI is exhausted
