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Water Filter for the Frigidaire FGUB2642LF9 (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:
✓
FGUB2642LF9 specifics — where the filter actually lives
Where the filter actually lives: in the fresh-food compartment — exact spot varies by dispenser layout, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a quarter-turn twist-in seat: offer the cartridge, feel the base o-ring register, and lock it by geometry rather than by force.
Order-day practicalities: the reset control is the step everyone skips; the light will not acknowledge a new cartridge on its own. Whatever the badge on the door says, the parts reality is this chassis drinks from the ULTRAWF family, one of the most cross-referenced cartridges in the Frigidaire catalog. Trailing letters like F9 denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.
Reading the FGUB2642LF9 model code — what the digits tell you
Cabinet class 26 cu ft — a box that size leans on the dispenser, so the six-month cartridge interval earns its keep. One generation, one cartridge: this generation runs on the ULTRAWF line across every cabinet variant.
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.
FGUB2642LF9 filter questions
Clearing the filter status light on a Frigidaire FGUB2642LF9?
Lock in the new cartridge first, then hold the reset control for a few seconds — the FGUB2642LF9 manual documents the button for each panel variant.
Is a bypass plug required for the FGUB2642LF9 when the cartridge is removed?
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 FGUB2642LF9?
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
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