Water Filter for the Frigidaire LGUS2642LF1 (WF3CB)

Your Frigidaire refrigerator takes the WF3CB slot. Below is every filter that fits — OEM and certified alternatives — with real prices.

✓ 100% compatible — no bypass plug needed

🔧 5-min push-in swap

🇺🇸 Ships from Indiana

LGUS2642LF1 · Quick Facts

TYPE

refrigerator

YEARS MADE

—

FILTER LOCATION

inside the fresh-food cavity, position varying with dispenser spec

FILTER SLOT

PureSource 3 (WF3CB) bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

—

LGUS2642LF1 · Quick Facts

Filter locationinside the fresh-food cavity, position varying with dispenser spec

Filter slotPureSource 3 (WF3CB) bay

Replace everyEvery 6 months

Typical installTwist or push — 5 minutes, no tools

Every cartridge that fits this model — pulled live from the catalogue:

✓

Verified fit for LGUS2642LF1. Cross-checked against Frigidaire service documentation — this model family uses the WF3CB bay with no chip or bypass restrictions.

Not your model? Check the finder →

LGUS2642LF1 specifics — where the filter actually lives

The LGUS2642LF1 carries its water filter inside the fresh-food cavity, position varying with dispenser spec, so expect to clear one shelf edge before you have working room. This is a twist-style bay, the friendlier design: look for the index lugs, offer the cartridge, and rotate until they disappear into the housing.

Two quirks worth knowing before you order: plan on a towel for the first pull — sitting water in the line — and a five-second reset hold once the fresh cartridge is in. What pins the parts choice down is the media line: the WF3CB line — which is why fit listings key on chassis rather than door style. The F1 ending is a finish code — color and handle options, not mechanical ones. Every finish of this chassis takes the same cartridge.

Reading the LGUS2642LF1 model code — what the digits tell you

Cabinet class 26 cubic feet — a box that size leans on the dispenser, so the six-month cartridge interval earns its keep. Order by cartridge, not by cabinet: fit charts key on the WF3CB cartridge family rather than the door configuration, so trim differences never change the order.

Swap it in 5 minutes

Twist the old cartridge a quarter turn counterclockwise and pull it straight down — keep a towel in reach for the dribble.
Fill the new cartridge with cold tap water so the chamber is not fighting an air pocket.
Offer the new cartridge to the bay, push up, and twist a quarter turn clockwise until the stop catches.
Run two gallons through the dispenser to flush carbon fines, then hold the filter-reset control until the status light clears.

What this filter takes out of your water

What it targets	Standard that covers it
Chlorine taste & odor	NSF/ANSI 42 — aesthetic effects
Particulates, Class I	NSF/ANSI 42 — fine sediment
Lead	NSF/ANSI 53 — health effects
Cysts (cryptosporidium, giardia)	NSF/ANSI 53 — microbial
PFOA & PFOS	NSF/ANSI 53 (P473) — varies by cartridge

Coverage above lists what the standard addresses, not a performance claim for any specific cartridge — removal claims vary by certificate, so check the NSF listing for the exact part number you are buying.

LGUS2642LF1 filter questions

Frigidaire LGUS2642LF1: how do I clear the change-filter light?

Press and hold the reset control until the light clears (a few seconds), with the new cartridge already seated — the LGUS2642LF1 owner’s manual lists the button location for your control panel.

Running the LGUS2642LF1 with an empty filter bay — does it need a cap?

Nothing to buy — the WF3CB housing closes without a cartridge; water runs unfiltered until the next one goes in.

Are off-brand filters safe for a Frigidaire refrigerator?

Certified aftermarket cartridges are built to the same NSF test standards as the OEM part, and federal warranty law (Magnuson-Moss) protects your coverage when you use them.

Why is the OEM WF3CB cartridge so much more expensive?

Part of the OEM price is the badge and the distribution chain. Certified alternatives meet the same test standards at a lower unit price, especially in multi-packs.

How often should I replace the filter in my LGUS2642LF1?

Every six months or at the rated gallon capacity, whichever comes first — the WF3CB class cartridges all share that service interval.

Do I need to turn off the water supply to change it?

No — the bay is designed for a live swap. Expect a small dribble, keep a towel in reach, and flush a couple of gallons through the new cartridge before the first glass.

Every filter that fits your fridge

OEM WF3CB cartridge

This bay takes the OEM WF3CB. ClearFit verified-fit alternatives for this exact slot are being staged — every compatible option for your fridge is one lookup away.

Check every filter that fits →