APLOS Alpha: Replacement NAC (Nano Anti-Bacterial Carbon Filter) Stage 5: Replacement NAC Filter- Nano anti-bacterial post-activated carbon filter- Final polishing filter to enhance clarity and freshness- Double protection from post-bacterial contaminationReplacement Filter Materials:- Polypropylene filter housing,- Activated carbon- Zinc oxide- Whisker (nano)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)