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Water Filter for the LG LRFD25850WW (LT600P)
✓ 100% compatible — no bypass plug needed
🔧 5-min push-in swap
🇺🇸 Ships from Indiana
Every cartridge that fits this model — pulled live from the catalogue:
✓
LRFD25850WW specifics — where the filter actually lives
The filter bay on the LRFD25850WW in the fresh-food compartment — exact spot varies by dispenser layout — usually a kneeling-height or shoulder-height swap, not a teardown. Mechanically the LRFD25850WW uses a push-and-twist cartridge: seat first, rotate second — reversing the order is the only way to fight this bay, and it will not let you.
Two quirks worth knowing before you order: expect dribble at the bay on removal even with the supply off, and remember the indicator will not self-clear — hold the reset control. What pins the parts choice down is the media line: the LT600P media line; that is the anchor every compatible listing hangs from. The WW ending is a finish code — color and handle options, not mechanical ones. Every finish of this chassis takes the same cartridge.
Reading the LRFD25850WW model code — what the digits tell you
Size class 25 cubic feet — worth knowing because a full household works a cartridge harder than the rated six months assumes. What stays constant across the trim range: model-code suffixes track cosmetics; the LT600P fit is invariant across them.
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.
LRFD25850WW filter questions
Filter light reset on the LG LRFD25850WW — how?
Press and hold the reset control until the light clears (a few seconds), with the new cartridge already seated — the LRFD25850WW owner’s manual lists the button location for your control panel.
Running the LRFD25850WW with an empty filter bay — does it need a cap?
No — the LT600P bay seals on the cartridge itself, so removing it just means unfiltered water until the next change, not a leak.
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 LRFD25850WW?
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
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 →This filter expires six months from today
Your HVAC filter is probably on a different cycle. Track them all in one place.
months until this filter should be replaced (200-gal rated life)
Free tool · tracks fridge + HVAC + whole-house · auto-refill optional
More models using this filter
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