Home › Refrigerator Water Filters › Frigidaire › LGUS2642LM1
Water Filter for the Frigidaire LGUS2642LM1 (WF3CB)
✓ 100% compatible — no bypass plug needed
🔧 5-min push-in swap
🇺🇸 Ships from Indiana
Every cartridge that fits this model — pulled live from the catalogue:
✓
LGUS2642LM1 specifics — where the filter actually lives
The LGUS2642LM1 carries its water filter in the fresh-food compartment, placement dependent on the dispenser package, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a quarter-turn twist-in seat: the bay wants the cartridge offered flat, rotated a quarter turn, and nothing more — hand pressure only.
Practical notes from the install forums: flush before the first glass — new carbon beds shed fines for the first gallon or so, which is cosmetic, not contamination. What pins the parts choice down is the media line: the WF3CB cartridge family is what every fit listing for this chassis resolves to, OEM and certified alternative alike. That M1 suffix is trim-level shorthand. Frigidaire kept the WF3CB bay common to every finish in the line.
Reading the LGUS2642LM1 model code — what the digits tell you
The 26 cu ft figure in the code is the household size proxy; larger households breach the rated gallons before the calendar does. Hold this constant while shopping: the same WF3CB family covers this chassis end to end.
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.
LGUS2642LM1 filter questions
Filter light reset on the Frigidaire LGUS2642LM1 — how?
With the new cartridge seated, press and hold the filter reset until the light clears — panel placement differs, so the LGUS2642LM1 manual’s filter section has the exact control for your trim.
Is a bypass plug required for the LGUS2642LM1 when the cartridge is removed?
No — run it empty if you like; the WF3CB bay needs no bypass plug, it simply passes water through untreated.
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 LGUS2642LM1?
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
| Cartridge | OEM WF3CB | RECOMMENDEDWF3CB Replacement Water Filter · 1-Pack – ClearFit | WF3CB Replacement Water Filter · 3-Pack – ClearFit | WF3CB Replacement Water Filter · 6-Pack – ClearFit |
|---|---|---|---|---|
| Price | OEM list | $10.49 | $26.22 | $47.16 |
| Verified fit | ✓ the bay cartridge | View & buy → | View & buy → | View & buy → |
This filter expires six months from today
Your HVAC filter is probably on a different cycle. Track them all in one place.
months until this filter should be replaced (200-gal rated life)
Free tool · tracks fridge + HVAC + whole-house · auto-refill optional
More models using this filter
Related guides
POPULAR GUIDE
How to change a Whirlpool refrigerator water filter
Every Filter 1–6 bay location — including the door-mounted bays on WRX models, with door-open angles and cap-release quirks. — read the guide →
POPULAR GUIDE
How to reset your Whirlpool filter light
Filter 1–6 indicator maps showing which key actually clears the light on your panel. — read the guide →
WATER PROBLEM GUIDE
Does your fridge filter remove fluoride?
What EDR1RXD1-class carbon blocks actually take out — and the systems that do remove fluoride. — read the guide →