Water Filter for the LG LMX25986SB (LT700P)

LMX25986SB specifics — where the filter actually lives

The LMX25986SB carries its water filter in the fresh-food compartment, placement dependent on the dispenser package — usually a kneeling-height or shoulder-height swap, not a teardown. Mechanically it is a push-and-twist seat: seat the cartridge, give it the quarter turn, and the bay takes it from there.

Order-day practicalities: run the first gallon or two through a fresh cartridge before drinking — carbon fines are normal — and reset the indicator so the countdown matches reality. LM is not a trim code, it is a chassis statement: LG built these as 4-door Max machines, and the filter bay inherits the geometry that implies, including where the dispenser feed runs. Trim code SB: cosmetic variants of one chassis, one cartridge family.

LM vs LF — what the prefix tells you

Same parts shelf, two cabinet missions — 4-door Max against French-door, respectively. Filter bays rarely care — the media family carries over more often than not. call it a 25 cubic feet box — which is why this cartridge works for a living rather than sitting decorative.

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.

LMX25986SB filter questions