How often to replace a refrigerator water filter

Most refrigerator makers recommend replacing the water filter about every six months, or sooner if the filter reaches its rated capacity in gallons. Your refrigerator's manual and the filter's own label give the exact interval.

Signs it is time

• The fridge's filter indicator light comes on (it is usually timer-based, so reset it after changing the filter).
• Water flow from the dispenser slows.
• Ice or water tastes or smells different.

Find the right filter

Use the part number printed on your current filter or listed in your refrigerator manual (for example LT700P, EPTWFU01 or 9890). The refrigerator model number is usually on a label inside the fresh-food compartment. Match the part number exactly; filters with different housings will not seat. See our refrigerator filter cross-reference and GE XWF vs XWFE notes.

After installing

Follow the maker's instructions to flush the new filter, which commonly means running several gallons through the dispenser and discarding the first batches of ice. Reset the filter indicator.

Examples from our catalog

• Replacement Refrigerator Water Filter for Frigidaire WF3CB PureSource 3 — 1 Pack — $30.02
• Replacement for LG LT700P Refrigerator Water Filter — 1 Pack — $30.02
• Replacement Refrigerator Water Filter for GE XWF — 1 pack — $30.02
• Replacement Refrigerator Water Filter for Samsung DA29-00003G (HAFCU1/XAA) — 1 pack — $30.02
• Kenmore 9890 - 46-9890, ADQ72910902 Replacement Refrigerator Water Filter — 1 Pack — $30.02

Shop refrigerator water filters Part-number cross-reference Under-sink and whole-house cartridges

Related categories: Refrigerator Water Filters. General information only; follow the equipment maker's instructions and local codes. Updated 2026-11-14.