Westinghouse Fridge Water Filter | What You Need to Know Before You Buy 

If you are searching for a Westinghouse fridge water filter, there is something worth knowing before you order anything. Westinghouse refrigerators sold in the USA are actually made by Electrolux, the same company behind Frigidaire. That means your Westinghouse fridge uses Frigidaire PureSource filter parts, not a proprietary Westinghouse cartridge.

This is actually useful information. Frigidaire filters are widely available, well-tested, and easy to find at any appliance parts retailer. You do not need a specialist Westinghouse supplier, the same filter sold for Frigidaire and Electrolux side-by-sides fits your fridge.

Which Westinghouse Fridge Water Filter Do You Actually Need?

Westinghouse refrigerators use one of three internal filter types, WFCB, WF2CB, or WF1CB depending on the model and year. Older models and top-freezer models without an internal filter slot use an external inline filter (part number 5304492441).

To confirm, open your fridge and find the current filter. The part number is printed on the label WFCB, WF2CB, or WF1CB. That is your replacement. If there is no internal filter, check behind the fridge for an inline cartridge on the water line.

WFCB, WF2CB, and WF1CB are all Frigidaire PureSource filters. They look similar but are not interchangeable; each fits a different housing style. Always verify with the label on your installed filter before ordering.

Westinghouse Fridge Water Filter by Model Number

Use this table to match your Westinghouse model to the correct filter. If your exact model is not listed, the first 5-6 characters of the model number usually indicate the filter type

Your Westinghouse model number is on a sticker inside the door frame, usually on the left wall of the fridge compartment. If the sticker is worn, check the original purchase receipt or owner’s manual.

What Does the Westinghouse Fridge Filter Remove?

All three internal Westinghouse filter types, WFCB, WF2CB, and WF1CB are NSF 42 and NSF 53 certified. In practical terms that covers chlorine taste and odor, lead, mercury, cysts (Cryptosporidium and Giardia), and several industrial chemicals.

What they do not cover, pharmaceuticals, BPA, PFAS, fluoride, or nitrates. If any of those are specific concerns for your household an under-sink carbon filter or RO system handles them. The built-in fridge filter is designed for the most common contaminants in city water, not comprehensive purification.

The external inline filter (5304492441) is NSF 42 certified only, chlorine taste and odor. It does not reduce lead or cysts. If your Westinghouse fridge relies on an inline filter and lead is a concern, consider adding a separate NSF 53 certified point-of-use filter at the sink.

The EPA recommends replacing fridge water filters every 6 months regardless of usage, an overdue filter can release previously trapped contaminants back into your water.

WFCB vs WF2CB vs WF1CB | How to Tell Them Apart

Three filters, three different housings. Here is how to tell them apart without pulling the filter out:

• WFCB (PureSource): Has a removable cup cover that you twist off before pulling the filter. Older side-by-side Westinghouse models. If your filter housing has a plastic cup screwed over it, this is your filter.
• WF2CB (PureSource 2): Push-button eject mechanism, same style as most modern fridge filters. Press the button and the filter slides out. Most common in mid-2000s to early 2010s side-by-sides.
• WF1CB (PureSource Ultra): Newer push-button style, slightly different dimensions from WF2CB. Located in the interior top-right. If you have a newer Westinghouse side-by-side, this is likely your filter.

Still unsure? The part number on your installed filter settles it in 10 seconds. Pull it out and read the label.

How to Replace a Westinghouse Fridge Water Filter

The process depends on which filter type you have. All three take under 3 minutes with no tools.

WFCB | Twist-off cup cover

• Twist the cup cover counterclockwise to remove it
• Pull the filter straight out of the housing
• Insert the new WFCB filter and replace the cup cover, twist clockwise to secure
• Run 2 gallons through the dispenser before drinking

WF2CB and WF1CB | Push-button eject

• Press the eject button to release the filter, it will slide out slightly
• Pull straight out, have a cloth ready for drips
• Remove the cap from the new filter and push it straight in until it clicks
• Reset the filter indicator and flush 2 gallons through the dispenser

5304492441 | External inline filter

• Pull the fridge away from the wall
• Turn off the water supply valve
• Disconnect the inline filter from both ends, push-fit connectors release with a collar push
• Connect the new filter, match the flow direction arrow
• Turn the water back on and check for leaks before pushing the fridge back

Replace all filter types every 6 months or 200 gallons, whichever comes first.

Where to Find Westinghouse Fridge Water Filter Replacements

Because Westinghouse refrigerators use Frigidaire PureSource filter parts, replacements are available at most major appliance retailers, Home Depot, Lowe’s, Amazon, and specialist parts sites.

When ordering, confirm the exact filter part number (WFCB, WF2CB, or WF1CB) from the label on your installed filter before purchasing. Ordering by model number alone can sometimes return the wrong result.

Frequently Asked Questions

What water filter does a Westinghouse fridge use?

Westinghouse refrigerators use Frigidaire PureSource filters, WFCB, WF2CB, or WF1CB depending on the model. Check the label on your installed filter to confirm.

Is WFCB the same as WF2CB?

No, WFCB uses a twist-off cup cover housing and WF2CB uses a push-button eject. They are not interchangeable.

Why does my Westinghouse fridge use a Frigidaire filter?

Westinghouse refrigerators in the USA are manufactured by Electrolux,  the same company behind Frigidaire. Both brands use the same PureSource filter system.

How often should I replace my Westinghouse fridge water filter?

Every 6 months or 200 gallons, whichever comes first.

Where is the water filter on a Westinghouse side-by-side refrigerator?

Inside the fridge in the upper-right area, either with a twist-off cup cover (WFCB) or a push-button housing (WF2CB or WF1CB).