SAMVIRAAEach brand sets its own interval. A drop in flow or a returning chlorine smell are the usual signs.
By brand
- Sentry: once a year.
- Crystal Quest: every 6 to 12 months, sooner if flow drops or a chlorine smell returns. Hard water shortens cartridge life.
- GoodFor: when flow drops or a chlorine smell returns. GoodFor's product photo describes a 3 to 6 month life.
Keep a spare
Cartridges come in packs. One spare on the shelf means no gap when the old one is done.
Find yours
Use the replacement finder: pick your filter and we show the cartridge it takes.