Water Filter for the LG LRSC21934SW (LT500P)

Your LG refrigerator takes the LT500P slot. Below is every filter that fits — OEM and certified alternatives — with real prices.

✓ 100% compatible — no bypass plug needed

🔧 5-min push-in swap

🇺🇸 Ships from Indiana

LRSC21934SW · Quick Facts

TYPE

refrigerator

YEARS MADE

—

FILTER LOCATION

in the fresh-food compartment, placement dependent on the dispenser package

FILTER SLOT

LT500P bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

—

LRSC21934SW · Quick Facts

Filter locationin the fresh-food compartment, placement dependent on the dispenser package

Filter slotLT500P bay

Replace everyEvery 6 months

Typical installTwist or push — 5 minutes, no tools

Every cartridge that fits this model — pulled live from the catalogue:

✓

Verified fit for LRSC21934SW. Cross-checked against LG service documentation — this model family uses the LT500P bay with no chip or bypass restrictions.

Not your model? Check the finder →

LRSC21934SW specifics — where the filter actually lives

Where the filter actually lives: in the fresh-food compartment, placement dependent on the dispenser package, a deliberate placement that keeps the swap away from the door seals and drawer rails. Mechanically it is a push-and-twist seat: seat first, rotate second — reversing the order is the only way to fight this bay, and it will not let you.

Before you click buy, two things: expect the first swap to take longer than the box suggests — aged o-rings grip — so budget ten minutes, not five. Under the cabinet differences one thing holds: the LT500P line — which is why fit listings key on chassis rather than door style. SW is finish coding: handles, colors, panel options — none of it reaches the filter bay.

Reading the LRSC21934SW model code — what the digits tell you

Read the code as 21 cubic feet of capacity, which tells you the cartridge’s real workload between changes. The parts catalog sees it simply: fit charts key on the LT500P cartridge family rather than the door configuration, so trim differences never change the order.

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

What it targets	Standard that covers it
Chlorine taste & odor	NSF/ANSI 42 — aesthetic effects
Particulates, Class I	NSF/ANSI 42 — fine sediment
Lead	NSF/ANSI 53 — health effects
Cysts (cryptosporidium, giardia)	NSF/ANSI 53 — microbial
PFOA & PFOS	NSF/ANSI 53 (P473) — varies by cartridge

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.

LRSC21934SW filter questions

Clearing the filter status light on a LG LRSC21934SW?

Press and hold the reset control until the light clears (a few seconds), with the new cartridge already seated — the LRSC21934SW owner’s manual lists the button location for your control panel.

LRSC21934SW with no water filter installed — safe, or does it need a bypass?

Nothing to buy — the LT500P housing closes without a cartridge; water runs unfiltered until the next one goes in.

Are off-brand filters safe for a LG refrigerator?

Certified aftermarket cartridges are built to the same NSF test standards as the OEM part, and federal warranty law (Magnuson-Moss) protects your coverage when you use them.

Why is the OEM LT500P cartridge so much more expensive?

Part of the OEM price is the badge and the distribution chain. Certified alternatives meet the same test standards at a lower unit price, especially in multi-packs.

How often should I replace the filter in my LRSC21934SW?

Every six months or at the rated gallon capacity, whichever comes first — the LT500P class cartridges all share that service interval.

Do I need to turn off the water supply to change it?

No — the bay is designed for a live swap. Expect a small dribble, keep a towel in reach, and flush a couple of gallons through the new cartridge before the first glass.

Every filter that fits your fridge

OEM LT500P cartridge

This bay takes the OEM LT500P. ClearFit verified-fit alternatives for this exact slot are being staged — every compatible option for your fridge is one lookup away.

Check every filter that fits →