APLOS Angel - CFIII Composite 3-in-1 Replacement filter Replacement filter for the APLOS ANGEL Stage 1-3: CFII 3-in-1 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: - Composite filter element made of PP cotton, phosphate, and activated carbon rods 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. "Click" sound 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 period - every 12 months*(Please note this will vary according to water usage and feed quality)