LG LT500P Refrigerator Water Filter

LT500P Water Filter Replacement

The LG LT500P water filter replacement is the long-life cartridge for LG refrigerators that take the ADQ72910911 filter. It is rated for up to 500 gallons and up to 6 months of everyday use, which makes it one of the hardest-working filters in the LG range: a single cartridge covers half a year of drinking water, ice, coffee, cooking water and everything else your household draws from the fridge dispenser. Inside the cartridge, activated carbon filtration reduces chlorine taste and odour and traps sediment, so water tastes clean and fresh from the first glass after a change to the last one before the next. If your current filter has slowed down, your ice has started to taste like the freezer, or the filter light on the door has turned red, the LT500P is the replacement your refrigerator was designed to use — a genuine-spec cartridge that twists in by hand in about a minute, with no tools and no plumber.

Why Choose LT500P Water Filter

The LT500P is a popular choice because it asks so little of you and gives so much back. Many LG owners search for the LT500P or for ADQ72910911 when the reminder light comes on, and what they want is simple: the correct cartridge, at a fair price, that fits first time and keeps working for the full rated life. The LT500P delivers exactly that. Its 500-gallon capacity is larger than the 200-gallon cartridges fitted to many newer LG models, which means fewer changes per year for households that use a lot of filtered water. The activated carbon media works continuously as water passes through it, reducing the chlorine taste and odour that municipal treatment leaves behind and trapping sediment before it can reach your glass or your ice maker. Because it is made to the original LT500P specification, it seats properly in the filter housing, seals correctly, and keeps the dispenser flowing at full pressure — no leaks, no drips, and no warning lights caused by a cartridge that almost fits.

Compatible Refrigerator Models

The LT500P is made for LG refrigerators that specify the LT500P / ADQ72910911 cartridge. Compatibility is decided by the cartridge your fridge already uses, not by the badge on the door, so always confirm against the label on your current filter before ordering.

LG Refrigerators

This cartridge fits the range of LG French-door and side-by-side refrigerators whose manuals and filter labels call for the LT500P or ADQ72910911. If your LG fridge has an internal filter compartment — most often inside the fresh food section — and the cartridge inside it is marked LT500P or ADQ72910911, this is your filter.

Replaces These Part Numbers

The LT500P replaces LT500P, ADQ72910911 and ADQ72910901. If any of these numbers appears on your old cartridge, on the filter housing label, or in your refrigerator manual, the LT500P is the correct replacement.

How to Check Before You Order

Pull your current cartridge out (the steps below show how) and read the label: if it says LT500P, ADQ72910911 or ADQ72910901, order with confidence. If it shows a different number — for example LT1000P, LT800P or LT700P — your fridge uses a different cartridge, and you will find those in our LG range instead. Matching the number on the label is the one check that guarantees the right fit.

Fresh Water for Everyday Use

The LT500P earns its place in homes that use filtered water all day long. A fresh cartridge keeps drinking water tasting clean for the morning glass, makes clearer and better-tasting ice for drinks, and takes the chlorine edge off water used for coffee, tea, cooking and filling the kettle. As any carbon filter ages it gradually loses its ability to reduce taste and odour, and flow through the dispenser can slow as the media loads with sediment — which is why the 6-month change interval matters even if the water still looks fine. With a 500-gallon rating, the LT500P is built to hold its performance across a full half-year of family use, so the last glass from the cartridge tastes as fresh as the first.

Easy to Replace

Changing the LT500P takes about a minute and needs no tools and — on most models — no water shut-off. Follow these steps:

1. Locate the filter compartment inside your refrigerator (check your manual if you are unsure where it sits on your model).
2. Open the compartment and grip the old cartridge. Twist it to release it, then pull it out. Have a small towel handy for the few drips of water that are trapped in the housing.
3. Note the part number on the old cartridge label — LT500P, ADQ72910911 or ADQ72910901 — and confirm it matches what you ordered.
4. Remove the protective cover from the new LT500P, push it into the housing and twist until it locks firmly into place. A correctly seated cartridge sits straight and does not wobble.
5. Flush the new filter: run about 2 to 2.5 gallons of water through the dispenser and throw that water away. This clears air and loose carbon from the new media. The first batch of ice can be discarded too.
6. Reset the filter light following your refrigerator’s instructions (on most LG models, press and hold the filter reset button for a few seconds) so the fridge starts counting the new cartridge’s 6-month life from today.

If the dispenser sputters at first, that is just air leaving the line and it settles after flushing. If flow stays slow, remove the cartridge and re-seat it with a firm twist — a partial seat is the most common cause.

A Reliable Choice for Clean Water

If you want a dependable LT500P water filter replacement, this cartridge is a strong choice: original-spec fit for LG refrigerators, a generous 500-gallon and 6-month working life, activated carbon filtration for chlorine taste, odour and sediment, and a one-minute tool-free change. It is made for regular replacement and better everyday water quality at home, and it is backed by our free US shipping and free 30-day returns if you ever order the wrong cartridge by mistake.

Inside the Filter: How It Works

Every drop from your dispenser and every cube from your ice maker passes through the LT500P’s activated carbon block before it reaches you. Activated carbon is made by treating carbon-rich material so its surface is covered in millions of microscopic pores, giving a single cartridge an enormous internal surface area. As water moves through the block, chlorine — the chemical that makes treated tap water taste and smell like a swimming pool — is adsorbed onto that surface and removed, along with the compounds responsible for stale, flat tastes. The dense block also works mechanically, trapping sediment particles — rust flakes, grit and fine debris travelling from the supply line — before they can reach the dispenser or the ice maker. That combination of adsorption and physical straining is why a fresh cartridge improves both taste and clarity at once. It is also why the filter has a working life: the carbon’s pores gradually fill, and no amount of flushing restores them. At 500 gallons or 6 months the media has done the work it can do, and performance falls away — the signal that a replacement is due.

When to Replace: Signs Your Filter Is Done

The filter light is the official reminder, but your senses usually notice first. Water that tasted clean starts to pick up a chlorine edge or a stale note. Ice cubes shrink, turn cloudy or develop an off taste that carries into drinks. Flow from the dispenser slows to a thin stream, because the carbon block is loaded with the sediment it has spent months trapping. Any one of these is your cartridge telling you it is at the end of its life, even if the light has not yet changed. Do not stretch a spent filter to save a few weeks: an exhausted cartridge is no longer reducing taste and odour, and the water reaching your glass is closer to straight tap water with every day. Replacing on schedule — at the light, at 6 months, or at the first symptom, whichever comes first — keeps every glass at the standard you bought the filter for.

Storing Your Spare Filters

If you order a multi-pack, keep the spare cartridges sealed in their packaging in a cool, dry cupboard away from strong-smelling cleaning products. A sealed LT500P stores perfectly well until its change day arrives, and having it in the house means the swap happens the day the light turns red rather than a week later.

Choose Your Pack Size

Every LT500P cartridge gives you up to 6 months and 500 gallons of filtration, so the pack sizes simply decide how far ahead you are covered:

• 1-Pack — $38.99 (SKU LT500P-1PK): one cartridge, up to 6 months of cover. The right choice for a single replacement or a first order.
• 2-Pack — $77.99 (SKU LT500P-2PK): a full year of filters in one order — one fitted today, one on the shelf ready for the next change.
• 3-Pack — $116.99 (SKU LT500P-3PK): 18 months of cover; you will not have to think about filter shopping for a year and a half.
• 4-Pack — $155.99 (SKU LT500P-4PK): two full years of replacements in a single delivery.

Multi-packs are about never being caught out: no running a tired filter for extra weeks while you wait for a delivery, no repeat orders, and the same free shipping on every pack. Because each cartridge is individually the correct LT500P specification, a spare on the shelf is always ready the day the light turns red.

FAQ’s

Here are the frequently asked questions about this product.

How long does the LT500P last?

Each LT500P cartridge is rated for up to 500 gallons or up to 6 months of use, whichever comes first. For most households the 6-month mark arrives first, so change it when the filter light comes on or at 6 months even if the light has not appeared.

Which part numbers does the LT500P replace?

It replaces LT500P, ADQ72910911 and ADQ72910901. Match the number on your current cartridge label before ordering and you have the right filter.

How do I install the LT500P?

Open the filter compartment, twist the old cartridge out, push and twist the new one in until it locks, then flush about 2 to 2.5 gallons through the dispenser and reset the filter light. It takes about a minute and needs no tools.

Why does my water taste odd just after changing the filter?

A brand-new carbon cartridge needs flushing. Run the recommended 2 to 2.5 gallons through the dispenser and discard the first batch of ice; taste should be clean and neutral after that.

What happens if I leave the old filter in too long?

The carbon media gradually becomes saturated, so chlorine taste and odour return, flow can slow as sediment builds up, and ice quality drops. The cartridge does not become dangerous, but it stops doing the job you bought it for — changing on schedule keeps performance where it should be.

Is the LT500P the same as the LT1000P or LT800P?

No. They are different cartridges for different LG models and they are not interchangeable. Order the number printed on your current cartridge.

Buy the LT500P from Discounted Filter Store

Order the LG LT500P from Discounted Filter Store and every order — any amount, any pack size — ships free anywhere in the US. We process orders within 1–2 business days and deliver in 3–5 business days via USPS. Changed your mind or ordered the wrong cartridge? Returns are free within 30 days with a prepaid label, so you can match your filter number and order with confidence.