Water Filter for the LG LSXS26366D (LT800P)

LSXS26366D specifics — where the filter actually lives

The LSXS26366D carries its water filter low on the fresh-food side or behind the base grille in most side-by-side layouts, the same estate every side-by-side refrigerator in this family uses. Mechanically it is a push-and-twist seat: offer the cartridge to the header, press, and rotate until the stop catches; a towel handles the dribble.

The recurring owner notes: the line is still live when you open the bay, so keep a towel in reach, and expect the filter-status light to need a reset before it believes the new cartridge. One prefix, one chassis family: LS is LG’s own coding for side-by-side machines, and in that format the water path is long enough that a neglected cartridge shows up as flow drop before it shows up as taste. That 6D suffix is trim-level shorthand. LG kept the LT800P bay common to every finish in the line.

LS vs LF — what the prefix tells you

LS versus LF is the first fork in the parts catalog: side-by-side against French-door, respectively. Filter bays rarely care — the media family carries over more often than not. 26 cubic feet of cabinet — the dispenser sees heavy traffic at that size, and heavy traffic ages cartridges faster.

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.

LSXS26366D filter questions