Home › Refrigerator Water Filters › LG › LSXS263662
Water Filter for the LG LSXS263662 (LT800P)
✓ 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:
✓
LSXS263662 specifics — where the filter actually lives
Where the filter actually lives: at the base of the fresh-food compartment in most side-by-side builds — grille or lower rear, the same estate every side-by-side refrigerator in this family uses. This is a push-twist style bay: the cartridge locks with a short rotation after seating; if it rotates freely, it is not seated.
Order-day practicalities: the change light ignores the new cartridge until you reset it, and the first removal always takes more muscle than the manual implies. One prefix, one chassis family: LS is LG’s side-by-side designation proper, and the service literature files every one of these under the same cartridge line. The 62 suffix here is a revision index, not a different machine — trim and door hardware can shift between revisions, the filter bay does not.
LS vs LF — what the prefix tells you
LS versus LF is the first fork in the parts catalog: LS means side-by-side, LF means French-door. For filter shopping the distinction matters less than you would think — same line, different cabinet. The digits in the model number read as cabinet capacity (26 cu ft), a decent proxy for how hard the filter works in daily service.
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.
LSXS263662 filter questions
Filter light reset on the LG LSXS263662 — how?
Hold the filter-reset control a few seconds after seating the new cartridge; placements vary by control panel, and the LSXS263662 manual’s filter-status page has the exact spot.
Does the LG LSXS263662 need a bypass plug when the filter is out?
No — the LT800P 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 LT800P 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 LSXS263662?
Every six months or at the rated gallon capacity, whichever comes first — the LT800P 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 LT800P. 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
Related guides
GUIDE · 4,400 SEARCHES/MO
How to change a Whirlpool refrigerator water filter
Every Filter 1–6 bay location — including the door-mounted bays on WRX models, with door-open angles and cap-release quirks. — read the guide →
GUIDE · 2,300 SEARCHES/MO
How to reset your Whirlpool filter light
Filter 1–6 indicator maps showing which key actually clears the light on your panel. — read the guide →
WATER PROBLEM · 27,100 SEARCHES/MO
Does your fridge filter remove fluoride?
What EDR1RXD1-class carbon blocks actually take out — and the systems that do remove fluoride. — read the guide →