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FGUB2642LF8

Exact-Fit Model Guide

Water Filter for the Frigidaire FGUB2642LF8 (ULTRAWF)

Your Frigidaire refrigerator takes the ULTRAWF 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

FGUB2642LF8 replacement water filter cartridge — Replacement cartridge for this model

FGUB2642LF8 · Quick Facts

TYPE

refrigerator

YEARS MADE

—

FILTER LOCATION

in the fresh-food compartment, placement dependent on the dispenser package

FILTER SLOT

PureSource Ultra bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

—

FGUB2642LF8 · Quick Facts

Filter locationin the fresh-food compartment, placement dependent on the dispenser package

Filter slotPureSource Ultra 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 FGUB2642LF8. Cross-checked against Frigidaire service documentation — this model family uses the ULTRAWF bay with no chip or bypass restrictions.

Not your model? Check the finder →

FGUB2642LF8 specifics — where the filter actually lives

The FGUB2642LF8 carries its water filter in the fresh-food compartment, placement dependent on the dispenser package, so expect to clear one shelf edge before you have working room. It is a twist-lock bay: release is counterclockwise, seating is clockwise, and the stops are firm enough that you cannot overshoot.

Owners of the FGUB2642LF8 report the same friction points: the first removal takes more force than every later one, and skipping the reset leaves a change-light glaring at a perfectly fresh cartridge. The constant across every trim of this machine is the cartridge line — the ULTRAWF cartridge family is what every fit listing for this chassis resolves to, OEM and certified alternative alike. Trailing letters like F8 denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.

Reading the FGUB2642LF8 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 model code varies with trim, but the parts logic does not: the FGUB2642LF8 and its siblings all drink from the ULTRAWF line, which keeps the parts search short.

Swap it in 5 minutes

Installing the replacement water filter in the FGUB2642LF8

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

Old cartridge vs new — the difference a timely swap makes

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.

FGUB2642LF8 filter questions

Filter light reset on the Frigidaire FGUB2642LF8 — how?

Hold the filter-reset control a few seconds after seating the new cartridge; placements vary by control panel, and the FGUB2642LF8 manual’s filter-status page has the exact spot.

Running the FGUB2642LF8 with an empty filter bay — does it need a cap?

No — the ULTRAWF bay seals on the cartridge itself, so removing it just means unfiltered water until the next change, not a leak.

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 FGUB2642LF8?

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

OEM ULTRAWF cartridge

This bay takes the OEM ULTRAWF. 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 →