Filters & Systems
Water Filter Replacement Calculator
Fridge, under-sink, RO, and whole-home — find out when each water filter is due based on type and usage. Free replacement-schedule calculator, no signup.
Frequently asked questions
How often should I change my refrigerator water filter?
About every 6 months for most households, sooner if you use a lot of water or notice slower flow or off taste. Heavy use or poor incoming water quality shortens it.
How long does an RO membrane last?
A reverse-osmosis membrane typically lasts 2–3 years, while the pre- and post-filters that protect it need changing every 6–12 months. Replacing the cheaper stage filters on schedule is what makes the membrane last.
How often should I change a whole-house water filter?
A whole-home sediment filter usually needs changing every 3–4 months; a carbon filter every 6–9 months. Well water and sediment-heavy supplies push those intervals shorter.
Does well water need more frequent filter changes?
Usually yes — well and sediment-heavy water loads filters faster than treated city water, often cutting filter life by 20–30%. Watch flow and pressure as early signs a filter is loading up.
What are the signs a water filter is past due?
Slower flow, lower pressure, a return of off taste or odor, or simply passing the recommended interval. With sediment filters you can often see the change; with carbon and RO, taste and flow are your cues.