MaintenanceUpdated June 2, 2026
How often should you actually change your filter?
Manufacturer labels are conservative — your home's real schedule depends on filter depth, pets, and climate.
- 1-inch filters: every 30-60 days with pets or allergies; 90 days max in a clean, single-person home.
- 4-inch and 5-inch media filters: every 6-12 months. Visually inspect at 6 months.
- Refrigerator water filters: every 6 months even if flow looks normal.
- Subscribe to Filtermap reminders below — we'll email you when it's time, sized to your exact filter.
Stay ahead of your filter
Get a reminder when it's time to change.
Filtermap sends a friendly email when your specific filter is due — and the best Amazon price the day you need it.