Water Filter for the LG LFX25975ST (LT600P)

Your LG refrigerator takes the LT600P 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

LFX25975ST · Quick Facts

TYPE

refrigerator

YEARS MADE

—

FILTER LOCATION

high on the fresh-food side in most French-door layouts — upper back or left wall

FILTER SLOT

LT600P bay

REPLACE EVERY

Every 6 months

ALSO BRANDED AS

—

LFX25975ST · Quick Facts

Filter locationhigh on the fresh-food side in most French-door layouts — upper back or left wall

Filter slotLT600P 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 LFX25975ST. Cross-checked against LG service documentation — this model family uses the LT600P bay with no chip or bypass restrictions.

Not your model? Check the finder →

LFX25975ST specifics — where the filter actually lives

Where the filter actually lives: high on the fresh-food side in most French-door layouts — upper back or left wall, the same estate every French-door refrigerator in this family uses. Mechanically the LFX25975ST uses a push-and-twist cartridge: two motions, one orientation, five minutes including the cleanup.

Two quirks worth knowing before you order: 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 badge reads LFX25975ST, but the chassis reads LF: the LF run is LG’s French-door series; across the run, the filter bay is one of the constants. ST is finish coding: handles, colors, panel options — none of it reaches the filter bay.

LF vs LS — what the prefix tells you

The catalog pairs LF with LS, and the split matters at order time: Ordering by prefix works because LF means French-door and LS means side-by-side in this catalog — and the cartridge pool overlaps both. read the code as 25 cu ft of capacity, which tells you the cartridge’s real workload 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

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.

LFX25975ST filter questions

How to reset the water filter indicator: LG LFX25975ST?

Seat the new cartridge first, then hold the filter-reset control for a few seconds until the status light clears — the exact button placement varies by control panel, so check the LFX25975ST owner’s manual page for filter status.

LFX25975ST with no water filter installed — safe, or does it need a bypass?

No — run it empty if you like; the LT600P bay needs no bypass plug, it simply passes water through untreated.

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 LT600P 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 LFX25975ST?

Every six months or at the rated gallon capacity, whichever comes first — the LT600P 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 LT600P cartridge

This bay takes the OEM LT600P. 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 →