Whirlpool WRT518SZFM02 Water Filter Replacement
Why The GXRTDR water filter…
The GXRTDR water filter is the correct and only compatible filter for the Whirlpool WRT518SZFM02 refrigerator. This model is a top-freezer unit that is icemaker-ready, meaning the water filter is specifically designed to fit the water line connection that supplies the optional icemaker. Users might mistakenly search for internal filters, but the WRT518SZFM02 uses an external, inline filter.
Common Mistakes When Ordering
- Ordering an internal water filter; the WRT518SZFM02 uses an external inline filter.
- Confusing the WRT518SZFM02 with side-by-side or French door models that use different filter types.
- Assuming all Whirlpool filters are interchangeable; always verify the SKU GXRTDR for this specific model.
Installation & Replacement Guide
Location & Installation: The GXRTDR water filter installs externally in the water supply line behind the Whirlpool WRT518SZFM02, typically near the water shut-off valve. Ensure the water supply is turned off before installation.
Replacement Frequency: Replace the GXRTDR water filter every 6 months or 200 gallons, whichever comes first, for the Whirlpool WRT518SZFM02.
Other Models Using GXRTDR
The same water filter (GXRTDR) is also compatible with these models:
Other Whirlpool Models
Frequently Asked Questions
Which water filter fits the Whirlpool WRT518SZFM02?
The GXRTDR water filter is the correct and only compatible filter for the Whirlpool WRT518SZFM02 refrigerator.
Is this water filter guaranteed to fit?
Yes. Every recommendation on ReplacementParts-AI is verified against the manufacturer's compatibility data. If a part doesn't fit, we'll make it right.
How long does shipping take?
Most orders ship within 1–2 business days. Standard delivery is 3–5 business days.