Water Filter for the LG PL1100 (LT500P)

PL1100 specifics — where the filter actually lives

The PL1100 carries its water filter in the fresh-food compartment — exact spot varies by dispenser layout, so expect to clear one shelf edge before you have working room. This is a push-twist style bay: the keyed entry means no cross-threading, and the locking turn is short enough to do one-handed.

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. What pins the parts choice down is the media line: the PL1100 shares its water path with the whole LT500P generation — the cartridge is the common denominator, not the door count. The -00 tail tracks the revision ladder — each rung shares the identical LT500P bay.

Reading the PL1100 model code — what the digits tell you

Read the code as 11 cu ft of capacity, which tells you the cartridge’s real workload between changes. Fit listings tell the same story: 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.

PL1100 filter questions