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Water Filter for the Frigidaire LGUB2642LF5 (ULTRAWF)
✓ 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:
✓
LGUB2642LF5 specifics — where the filter actually lives
The LGUB2642LF5 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. It is a twist-lock bay: no tools, no housing removal, and the cartridge indexes in only one orientation despite looking symmetric.
Order-day practicalities: the reset control is the step everyone skips; the light will not acknowledge a new cartridge on its own. Under the cabinet differences one thing holds: the LGUB2642LF5 shares its water path with the whole ULTRAWF generation — the cartridge is the common denominator, not the door count. The F5 tail marks finish variants of one chassis; the filter bay is shared across the entire finish range.
Reading the LGUB2642LF5 model code — what the digits tell you
The 26 cubic feet figure in the code is the household size proxy; larger households breach the rated gallons before the calendar does. The parts catalog sees it simply: the LGUB2642LF5 family shares one water path, so the ULTRAWF cartridge fits the entire run.
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.
LGUB2642LF5 filter questions
Reset procedure for the change-filter alert on the LGUB2642LF5?
Press and hold the reset control until the light clears (a few seconds), with the new cartridge already seated — the LGUB2642LF5 owner’s manual lists the button location for your control panel.
Will the Frigidaire LGUB2642LF5 dispense water without a filter cartridge?
No cap needed — the ULTRAWF bay passes water unfiltered while empty; it does not leak, it just skips filtration.
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 ULTRAWF 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 LGUB2642LF5?
Every six months or at the rated gallon capacity, whichever comes first — the ULTRAWF 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 ULTRAWF | RECOMMENDEDULTRAWF Replacement Water Filter · 1-Pack – ClearFit | ULTRAWF Replacement Water Filter · 3-Pack – ClearFit | ULTRAWF Replacement Water Filter · 6-Pack – ClearFit |
|---|---|---|---|---|
| Price | OEM list | $15.49 | $38.70 | $69.66 |
| 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
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