Water Filter for the LG LMXC23746D (LT800P)

LMXC23746D specifics — where the filter actually lives

The LMXC23746D carries its water filter in the fresh-food compartment — exact spot varies by dispenser layout, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a push-and-twist seat: two motions and a flush — the entire service procedure for this bay design.

Before you click buy, two things: expect dribble at the bay on removal even with the supply off, and remember the indicator will not self-clear — hold the reset control. The LM prefix is the tell: it places the machine in LG’s 4-door Max family, which pins down the cartridge line, the reset behavior, and the service documentation worth consulting. Finish letter sets like 6D never alter the bay; the LT800P line fits the whole set.

LM vs LF — what the prefix tells you

The LM prefix sits next to LF in the catalog and the split is cabinet mission: split by cabinet mission (4-door Max versus French-door), joined by cartridge line — that is the LM/LF story. capacity 23 cu ft: a mid-to-full-size cabinet whose dispenser traffic sets the realistic change cadence.

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.

LMXC23746D filter questions