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Frigidaire ULTRAWF vs WF3CB vs WF2CB: which PureSource filter do you need?
Quick answer: The Frigidaire ULTRAWF (PureSource Ultra) fits most Frigidaire and Gallery refrigerators from 2010 onward. The WF3CB (PureSource 3) fits 2006–2012 side-by-side models. The WF2CB (PureSource 2) fits older models with the FC-100 housing. Check your current filter label before ordering.
Frigidaire’s PureSource filters come in three main versions — and the naming doesn’t help
ULTRAWF. WF3CB. WF2CB. All three are Frigidaire refrigerator water filters. All three look similar. And none of them fits the others’ housing. Here’s how to tell them apart in under two minutes.
Frigidaire ULTRAWF — the current standard filter
The Frigidaire ULTRAWF (PureSource Ultra) is the most widely compatible Frigidaire filter, fitting French-door and side-by-side models from approximately 2010 onward. It also replaces Kenmore 9999.
- Filter life: 6 months or 200 gallons
- NSF certifications: 42 and 53
- Location: upper-right interior
- Also replaces: SCWF3CTO, Kenmore 9999
Frigidaire WF3CB — PureSource 3
The Frigidaire WF3CB (PureSource 3) is a slim push-in filter for Frigidaire side-by-side refrigerators, typically 2006 to 2012 models.
- Filter life: 6 months or 200 gallons
- NSF certifications: 42 and 53
Frigidaire WF2CB — PureSource 2
The Frigidaire WF2CB (PureSource2) fits older Frigidaire refrigerators with a 400-gallon capacity — the highest of the three.
- Filter life: 6 months or 400 gallons
- NSF certifications: 42 and 53
Quick reference table
| Filter | Also called | Capacity | Era |
|---|---|---|---|
| ULTRAWF | PureSource Ultra, Kenmore 9999 | 200 gal | 2010+ |
| WF3CB | PureSource 3 | 200 gal | 2006–2012 |
| WF2CB | PureSource 2, FC-100 | 400 gal | Pre-2006 |
Frigidaire air filters: a quick note
If your Frigidaire also has an air filter for odor control, those need replacing every 6 months too. Check out our FRGPAAF1 PureAir air filter and FRPFUAF1 PureFresh universal air filter.
Shop Frigidaire filters — free US shipping
Frequently asked questions
Is the Frigidaire ULTRAWF the same as SCWF3CTO?
Yes. The Frigidaire ULTRAWF and SCWF3CTO are compatible filters that fit the same refrigerators. The ULTRAWF is the standard OEM designation; SCWF3CTO is an alternate part number used on some models.
Does the Frigidaire ULTRAWF replace Kenmore 9999?
Yes. Kenmore 9999 is the same filter as the Frigidaire ULTRAWF. Kenmore refrigerators made by Frigidaire use this filter, which is available at Discount Filter Shop with free US shipping.
Can I use WF3CB instead of ULTRAWF?
No. Despite looking similar, the WF3CB and ULTRAWF have different housing connections and are not interchangeable. Always match the part number on your current filter.
How do I reset the water filter light on a Frigidaire refrigerator?
Press and hold the “Filter Reset” or “Reset” button on the control panel for 3 seconds after installing a new filter. On older models, you may need to press the Options and Cancel buttons simultaneously for 3 seconds.
