Water Filter for the LG LFX29927SB (LT700P)

LFX29927SB specifics — where the filter actually lives

The filter bay on the LFX29927SB inside the fresh-food cavity, upper zone in most French-door builds — usually a kneeling-height or shoulder-height swap, not a teardown. This is a push-twist style bay: the cartridge locks with a short rotation after seating; if it rotates freely, it is not seated.

Two quirks worth knowing before you order: the first removal takes more force than every later one, and skipping the reset leaves a change-light glaring at a perfectly fresh cartridge. The badge reads LFX29927SB, but the chassis reads LF: LF marks the French-door line in LG’s catalog, so cross-referencing cartridges by chassis rather than by door style keeps you out of the wrong-parts queue. That SB suffix is trim-level shorthand. LG kept the LT700P bay common to every finish in the line.

LF vs LS — what the prefix tells you

Catalog shorthand: Ordering by prefix works because LF means French-door and LS means side-by-side in this catalog — and the cartridge pool overlaps both. The two digits after the letters are the cabinet size: this is a 29 cu ft refrigerator, which sets how much dispenser work the cartridge does between changes.

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.

LFX29927SB filter questions