Water Filter for the LG WF290 (LT500P)

WF290 specifics — where the filter actually lives

The filter bay on the WF290 in the fresh-food compartment, placement dependent on the dispenser package, a spot that survives trim changes across the refrigerator run. It is a push-twist bay — press, quarter-turn, finished — the two-step seat keeps the o-ring from dragging on installation.

Before you click buy, two things: a first removal that fights a set o-ring, and a status light that needs a manual hold-to-reset before it acknowledges the new cartridge. The constant across every trim of this machine is the cartridge line — the WF290 shares its water path with the whole LT500P generation — the cartridge is the common denominator, not the door count. The -90 tail tracks the revision ladder — each rung shares the identical LT500P bay.

Reading the WF290 model code — what the digits tell you

29 cu ft of cabinet — the dispenser sees heavy traffic at that size, and heavy traffic ages cartridges faster. The stable part of the WF290 story is the water path: the water path is fixed at the LT500P line — that asymmetry is what makes filter shopping simple.

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.

WF290 filter questions