Water Filter for the LG LFXS30766S (LT700P)

LFXS30766S specifics — where the filter actually lives

On the LFXS30766S, the cartridge in the fresh-food compartment, typically the upper back wall in most French-door layouts, the same estate every French-door refrigerator in this family uses. This is a push-twist style bay: the cartridge locks with a short rotation after seating; if it rotates freely, it is not seated.

Practical notes from the install forums: plan on a towel for the first pull — sitting water in the line — and a five-second reset hold once the fresh cartridge is in. Decode the plate and the parts question answers itself: LF machines come from the French-door program, and LG’s parts system rewards you for knowing it: one cartridge family covers the run. The 6S ending is a finish code — color and handle options, not mechanical ones. Every finish of this chassis takes the same cartridge.

LF vs LS — what the prefix tells you

The LF/LS pair divides this family by layout — The door count differs — French-door against side-by-side — but the bay and the cartridge order do not. Size class 30 cu ft — worth knowing because a full household works a cartridge harder than the rated six months assumes.

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.

LFXS30766S filter questions