LG LT800P Refrigerator Water Filter

LG LT800P Water Filter Replacement

The LG LT800P refrigerator water filter is the activated carbon cartridge built for the generation of LG French-door and side-by-side refrigerators that take the ADQ73613401 filter — the cartridge that is also sold labelled LT800P and LT800PCS. Inside the fridge it does one job, quietly and continuously: it takes the chlorine taste and odour out of your dispenser water, traps the sediment that clouds ice, and keeps every glass tasting clean and fresh for the whole of its rated life. That life is 200 gallons, which for most households means about six months between changes. The cartridge is a simple twist-in design: it removes and refits by hand in about a minute, with no tools, no water shut-off gymnastics and no plumber. If your water has begun to taste like the tap again, if the ice smells faintly of the freezer, or if the filter indicator on the door has lit up, the LT800P is the replacement that puts things right — the correct cartridge, for the correct housing, ordered by the number printed on the filter you already own.

Why Choose the LG LT800P Water Filter

A refrigerator filter is a sealed partnership between cartridge and housing, and it only works when both halves match. The LT800P was shaped for the LG housings of its generation, so it seats fully, seals properly, and sends every drop of dispenser water through its activated carbon media. That seal is the difference between filtered water and water that merely passed near a filter: a cartridge that is close but not correct can let water bypass the carbon entirely, and you would never know from looking at it. The carbon itself is where the work happens. Activated carbon is riddled with microscopic pores, giving it a vast internal surface area, and as water flows across that surface, chlorine and the compounds responsible for bad taste and odour are adsorbed onto it and held there. Sediment — fine rust, sand and scale that both city and well water carry — is caught as well, which is why ice made through a fresh LT800P freezes visibly clearer. Choose the LT800P by its part number, ADQ73613401, and you get the fit LG intended, the taste improvement you can actually notice, and a full 200 gallons before you need to think about it again.

Compatible Refrigerators

The LT800P fits LG refrigerators designed for the LT800P / ADQ73613401 cartridge — a wide generation of LG French-door and side-by-side models. The same cartridge appears under three labels: LT800P, LT800PCS and ADQ73613401. They are one filter, not three, so any of those numbers on your old cartridge or in your manual points to this page.

LG French-Door Refrigerators

French-door models are the most common LT800P users. On most of them the filter compartment sits inside the fresh-food section, toward the top-left, behind a small cover that swings or lifts open. If your LG French-door fridge has a door dispenser and a filter light, and the cartridge inside twists out of a housing in that corner, you are very likely looking at an LT800P housing — the label check below confirms it in seconds.

LG Side-by-Side Refrigerators

Many LG side-by-side refrigerators of the same generation take the identical cartridge, housed in the fresh-food side. The replacement routine is the same as in the French-door models: open the compartment, twist the old cartridge out, twist the new one in until it locks, flush, and reset.

Check the Cartridge You Already Have

Compatibility should never be guessed from the fridge’s badge or age — the range is too wide and the cartridges look too similar. Pull the old cartridge out and read its label: LT800P, LT800PCS or ADQ73613401 means this is your filter. Your manual’s filter specification gives the same answer. Do not substitute the LT1000P or LT700P: they belong to different LG generations with different housings, and a cartridge that has to be forced has not sealed.

How the LT800P Cleans Your Water

Everything the LT800P does happens inside its bed of activated carbon. Water entering the cartridge is pushed through carbon that has been treated to be extraordinarily porous — gram for gram it offers a huge surface area — and filtration happens by adsorption: chlorine molecules and the organic compounds that make tap water taste and smell “treated” stick to that surface and stay there. The carbon bed and the cartridge’s structure also strain out sediment, the particulate matter that turns ice cloudy and can leave a glass looking dusty. The honest summary is that this is a taste, odour and clarity filter, working on water that your utility already supplies treated and safe. It does not soften hard water or stop kettle scale, and it is not a steriliser. Within its job description it is genuinely effective for its entire 200-gallon rating: water that tastes like water, ice that looks and tastes clean, and none of the chemical background note that makes people stop using the dispenser and start buying bottled water instead.

Fresh Water for Everyday Use

The dispenser is the hardest-working tap in most houses. It fills the kettle and the coffee maker in the morning, bottles for the school run and the gym, the jug that lives on the table, and the glasses that appear next to every meal — and in between it is quietly making ice for all of it. When the filter is fresh, all of that water tastes neutral and clean, so tea tastes of tea, squash for the children tastes of fruit rather than the treatment plant, and cooking starts from a blank canvas. It is usually only when a filter is long past its life that a household notices how much it relied on it: drinks go slightly chemical, ice picks up an odour from everything in the freezer, and people start avoiding the dispenser. A fresh LT800P resets all of that in one twist, and keeps it reset for about six months of ordinary family use.

Easy to Replace

Changing the LT800P takes about a minute and needs no tools:

1. Open the filter compartment inside the fridge — on most LG French-door models it is at the top-left of the fresh-food section, behind a small cover.
2. Lay a small towel underneath the housing; a little residual water usually escapes as the old cartridge comes out.
3. Twist the old cartridge out of the housing and pull it free.
4. Before you throw it away, read its label and note the number — LT800P, LT800PCS or ADQ73613401 is what you reorder next time.
5. Push the new LT800P into the housing and twist it until it locks. If it is not fully seated, flow will be slow and drips are likely, so give it a firm final turn.
6. Flush the cartridge by running 2 to 2.5 gallons of water through the dispenser and discarding it. The first water may run cloudy or slightly grey — that is air and loose carbon fines leaving the new filter, and it clears as you flush.
7. Throw away the first batch of ice for the same reason.
8. Reset the filter indicator: on most LG models, press and hold the Filter (or Reset) button on the dispenser panel for about three seconds until the light turns off. Your manual shows the exact button for your model.

That is the whole job — the dispenser should be back to full flow and clean taste immediately.

Keeping Your LT800P on Schedule

Two hundred gallons or six months is the rating, and whichever you reach first is your change date. A filter does not announce the end of its life by stopping — water keeps flowing through exhausted carbon; it just stops being cleaned by it. The practical warnings come earlier: the stream from the dispenser thins, cubes get smaller, hollower and cloudier, and the chlorine taste returns to drinks and ice. The indicator light is the final reminder, not the first. Best practice is simple: fit the new cartridge, then reset the light (never the other way round — a reset light on an old filter just hides the problem), and note the date so the next change is a plan rather than a surprise. And never rinse and refit an old cartridge: the carbon’s capacity is used up chemically, not coated in something washable, so a rinsed filter is still an exhausted filter.

Pack Sizes and Value

The cartridge is identical in every pack; the only choice is how many changes you want sitting in the cupboard. Every order from Discounted Filter Store ships free anywhere in the US, whatever the amount:

• 1-Pack — $41.50: one cartridge, 200 gallons, about 6 months of cover.
• 2-Pack — $84.00: two cartridges, 400 gallons, about a full year of cover.
• 3-Pack — $126.50: three cartridges, 600 gallons, about 18 months of cover.
• 4-Pack — $169.00: four cartridges, 800 gallons, about two full years of cover.

Twice a year is the natural rhythm for this filter, so a 2-Pack bought once covers a whole year of changes, and a 4-Pack covers two years — with no subscription to manage, no deliveries to schedule, and no risk of the light coming on while the right cartridge is out of stock locally. Since shipping is free even on a single pack, ordering one at a time costs you nothing extra either; the multipacks are about convenience and never being caught without a spare.

A Reliable Choice for Clean Water

If the cartridge in your LG refrigerator reads LT800P, LT800PCS or ADQ73613401, this is the replacement it was built around: correct fit, activated carbon that takes the chlorine taste and sediment out of your water and ice, a 200-gallon life, and a change you can do by hand in about a minute. Match the number on the label and the rest takes care of itself.

FAQ’s

Here is the frequently asked questions about this product

What is the LT800P?

The LT800P is an LG refrigerator water filter cartridge — an activated carbon filter rated for 200 gallons (about six months) that reduces chlorine taste and odour and traps sediment. It is the same cartridge as the one labelled ADQ73613401.

Is the LT800P the same as ADQ73613401?

Yes. ADQ73613401 is the LG part number for this cartridge; LT800P and LT800PCS are the names it is sold under. All three labels describe one and the same filter.

How long does the LT800P last?

About six months or 200 gallons, whichever comes first. If your household uses the dispenser heavily, the signs — slower flow, poorer ice, returning taste — may tell you to change it a little earlier.

Will the LT800P fit my refrigerator?

It fits the LG French-door and side-by-side refrigerators built for the LT800P/ADQ73613401 cartridge. The certain test is the label on your current cartridge or the filter specification in your manual — not the model name on the door.

How do I reset the filter light after fitting a new LT800P?

Fit the cartridge first, then, on most LG models, press and hold the Filter or Reset button on the dispenser panel for roughly three seconds until the light goes out. Your manual identifies the button for your specific model.

The new filter’s first water looks cloudy — is something wrong?

No. A new carbon cartridge releases trapped air and fine carbon particles at first, which can make the water look milky or grey. Flush 2 to 2.5 gallons through the dispenser and discard the first batch of ice, and it will run clear.

Buy the LG LT800P from Discounted Filter Store and it ships free anywhere in the US on any order amount — no minimum spend. Orders are processed within 1–2 business days and delivered in 3–5 business days via USPS, and every order is covered by free 30-day returns with a prepaid label, so ordering the cartridge your label calls for is completely risk-free.