Alka Flow - Set of 4 Filters

- HFilter 1: PP filter - lifespan of 6 months
- Filter 2: Anti-scale and carbon filter - lifespan of 6 months
- Filter 3: Ultra filter - lifespan of 6-12 months (needs backflushing)
- Cartridge 4: Alkaline cartridge - lifespan of 6-12 months