Water Filter for the LG LSXS26386D (LT800P)

LSXS26386D specifics — where the filter actually lives

On the LSXS26386D, the cartridge in the lower fresh-food zone in most side-by-side layouts, knee height or below, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a push-and-twist seat: a push to register, a turn to lock; the sequence is printed on most cartridges for a reason.

Practical notes from the install forums: 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. The badge reads LSXS26386D, but the chassis reads LS: when LG stamps LS on the plate it is sorting the machine into the side-by-side class — same water path, same cartridge, different cabinet. Trim code 6D: cosmetic variants of one chassis, one cartridge family.

LS vs LF — what the prefix tells you

The LS/LF pair divides this family by layout — side-by-side against French-door, respectively. Filter bays rarely care — the media family carries over more often than not. the 26 cu ft figure in the code is the household size proxy; larger households breach the rated gallons before the calendar does.

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.

LSXS26386D filter questions