Home › Refrigerator Water Filters › Frigidaire › FGUN2642LF6
Water Filter for the Frigidaire FGUN2642LF6 (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:
✓
FGUN2642LF6 specifics — where the filter actually lives
Where the filter actually lives: in the fresh-food compartment — exact spot varies by dispenser layout, a spot that survives trim changes across the refrigerator run. It is a twist-lock bay: offer the cartridge, feel the base o-ring register, and lock it by geometry rather than by force.
The small print owners learn the hard way: the line is still live when you open the bay, so keep a towel in reach, and expect the filter-status light to need a reset before it believes the new cartridge. Under the cabinet differences one thing holds: this chassis drinks from the ULTRAWF family, one of the most cross-referenced cartridges in the Frigidaire catalog. The F6 tail marks finish variants of one chassis; the filter bay is shared across the entire finish range.
Reading the FGUN2642LF6 model code — what the digits tell you
The two digits after the letters are the cabinet size: this is a 26 cu ft refrigerator, which sets how much dispenser work the cartridge does between changes. One generation, one cartridge: the water path is fixed at the ULTRAWF line — that asymmetry is what makes filter shopping simple.
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.
FGUN2642LF6 filter questions
Clearing the filter status light on a Frigidaire FGUN2642LF6?
With the new cartridge seated, press and hold the filter reset until the light clears — panel placement differs, so the FGUN2642LF6 manual’s filter section has the exact control for your trim.
Can I run the Frigidaire FGUN2642LF6 with no cartridge installed?
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 FGUN2642LF6?
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
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 →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 →