Water Filter for the LG LFX25961SB (LT600P)

LFX25961SB specifics — where the filter actually lives

Where the filter actually lives: in the fresh-food compartment, typically the upper back wall in most French-door layouts, a spot that survives trim changes across the LF run. The seat combines push-fit and twist-lock: two motions, one orientation, five minutes including the cleanup.

The recurring owner notes: a stiff first removal on builds that sat on the same cartridge for years, and an indicator light that wants a manual reset after a non-OEM cartridge is seated. Read the prefix and the maintenance writes itself: LF marks the French-door line in LG’s catalog, so cross-referencing cartridges by chassis rather than by door style keeps you out of the wrong-parts queue. Finish letter sets like SB never alter the bay; the LT600P line fits the whole set.

LF vs LS — what the prefix tells you

Two prefixes, two missions: LF covers French-door, while LS covers side-by-side. The cartridge line is usually shared across both — order by chassis, not by door count. Size class 25 cubic feet — worth knowing because a full household works a cartridge harder than the rated six months assumes.

Swap it in 5 minutes

• Press the release (if fitted), twist the old cartridge free, and pull it from the header.
• Wet the new cartridge’s o-ring with cold tap water so it seats without dragging.
• Push the cartridge square onto the header, then give it the locking quarter turn.
• 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.

LFX25961SB filter questions