Frizzlife's RO systems use a simple filter cartridge system that's easy to maintain. Here's the replacement schedule and what to buy for every Frizzlife under-sink RO model.
| ASR211 composite pre-filter | Every 12 months |
| ASR212 RO membrane | Every 24 months |
| TAM3 alkaline filter | Every 12 months |
| Annual cost | ~$65–$88 averaged over 2-year cycle |