Water Filter for the LG LSC27931SW (LT600P)

LSC27931SW specifics — where the filter actually lives

On the LSC27931SW, the cartridge at the base of the fresh-food compartment in most side-by-side builds — grille or lower rear, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically the LSC27931SW uses a push-and-twist cartridge: the short locking turn after the press is what keeps the seal honest between changes.

Two quirks worth knowing before you order: expect the first swap to take longer than the box suggests — aged o-rings grip — so budget ten minutes, not five. The LS prefix is the tell: LS is LG’s side-by-side designation proper, and the service literature files every one of these under the same cartridge line. Trim code SW: 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 — LS marks side-by-side builds and LF marks French-door builds. Cross-checking the prefix before ordering is faster than returning the wrong cartridge. the 27 cubic feet 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.

LSC27931SW filter questions