APLOS Alpha: Replacement Filter CFII Composite Stage 1-3: CFII Composite Filter - Removes large particles, dirt, rust, sand and other particles- Removes chlorine and chloramine, unpleasant taste and odours- Protects and extends reverse osmosis membranes service life Replacement Filter Materials: - Polypropylene filter housing- Foldable PP- Phosphate particles (Sodium Salt Compound)- Activated carbon Filter Replacement Steps: 1. Isolate power and shutoff unit.2. Shut off water supply to unit.3. Open tap and drain pure water and release pressure. Close tap.4. Easy pull and push filter replacement.Clicksound indicates that filter is installed properly.5. Reactivate water supply and power.6. Reset replaced filter lifespan.7. Check for any water leakage. Service Life:Recommended replacement periodevery 6-12 Months *(Please note this will vary according to water usage and feed quality)