Water Filter for the Frigidaire FGUN2642LP3 (ULTRAWF)

FGUN2642LP3 specifics — where the filter actually lives

The FGUN2642LP3 carries its water filter in the fresh-food compartment, placement dependent on the dispenser package, the same estate every refrigerator in this family uses. This is a twist-style bay, the friendlier design: half a turn of wrist work in each direction is the whole procedure; everything else is towel management.

Field notes: a stubborn first twist when the old o-ring has set, and a change-filter light that will not clear itself until you hold the reset. What pins the parts choice down is the media line: the FGUN2642LP3 shares its water path with the whole ULTRAWF generation — the cartridge is the common denominator, not the door count. Trailing letters like P3 denote trim and finish: stainless, panel-ready, handle variants. The water path is identical across them.

Reading the FGUN2642LP3 model code — what the digits tell you

Capacity check: the 26 cu ft in the code is the box size, and bigger boxes push more water through the same cartridge between swaps. Fit listings tell the same story: whatever the door count, the cartridge answer for this chassis is the ULTRAWF family.

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

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.

FGUN2642LP3 filter questions