
Your refrigerator is central to your everyday life in more ways than you probably think. Yes, it houses essential items like food and beverages. However, many modern fridges also dispense clean water and ice, which makes changing your water filter very important.
If LG makes your appliance, finding substitutes can be tricky if you’re unprepared. That’s why we’ve created a guide on finding the best water filter for LG refrigerators.
Is it okay to use a generic water filter in an LG fridge?
The good news is that you can use other brands of water filters in your refrigerator. However, you’ll need to be careful and ensure the device is compatible with your fridge.
Our Filters Fast® LG-compatible fridge water filters are NSF verified. This guarantees that, though they may be “generic”, you’re getting quality water filtration for a great price.
How do I choose the right water filter for my fridge?
Finding the best water filter for LG refrigerators begins with considering compatibility, the contaminants in your water source, and your budget.
As mentioned, ensuring the water filter works with your fridge is vital. If you’d like to use a filter similar to the one already installed, checking it for part numbers is a good place to start. Should that be difficult, you can always reference the manual or the manufacturer’s site using your fridge model.
A Few Important Reminders
- It’s crucial to always use a refrigerator water filter designed for your fridge’s specific model and from an authorized brand.
- Using filters past their recommended lifespan (typically six months) will increase the risk of poor water quality and potential appliance issues.
- Be aware of your refrigerator’s warranty. Issues caused by expired or unauthorized filters may not be covered under it.
It’s simple – replacing your fridge filter regularly has many benefits. If you change them regularly and correctly, you’ll drink guaranteed cleaner water and won’t have to worry about fridge repairs or replacements related to water filters.
For alternative options for your LG refrigerator water filter, you’ll still need to ensure the part is well-suited for your fridge. Using the same information, you can search online at a retailer.
Search LG Water Filters for Refrigerator by Fridge Model

What’s in Your Water?
After you find the part compatible with your appliance, ensure it removes the desired contaminants. If you’re unsure what impurities are in your water, it’s good to find out. You have two options to do so. The first is to hire a professional. Going this route costs more money, but it’s a good solution if you want less doubt about your water quality.
The other option is to use a DIY product like a home water quality test. You’ll save money and, at the same time, have a good idea of what kind of water pollutants you’re dealing with. The only downside to this is if you’re not a big do-it-yourself person. Luckily, performing a home water quality test is usually fairly simple.
With both options, you’ll likely have to wait for lab results, but once you’ve received those, you should be ready for the next step.
Don’t wait to find out what’s in your water. Find out now!

Sensafe Water Quality Test Filter Kit
Now that you know what’s in your water quality, you can shop accordingly, ensuring that your choice filters any contaminants you’re concerned about. The only other factor that remains to be considered is your budget.
Since you know the first two factors, getting the best LG refrigerator water filter replacement for your dollar should be easier. Try to balance performance, compatibility, and cost. Remember that this replacement filter will be an ongoing purchase. Also, replacing your filter manually instead of hiring a professional could help save money.
What if I can’t find a replacement filter right away?
Sometimes it might be more difficult than you anticipated to get your hands on the replacement filter you need.
Most LG refrigerators come with a filter bypass plug. It’s usually a white plastic piece with wings. You’ll want to hold on to that! You can simply pop that little gadget in place of your water filter, allowing your fridge and ice maker to keep operating normally until you can install the replacement.
The one thing you’ll need to know about using the fridge bypass plug is that your water won’t be filtered.
Will the icemaker work without a water filter or bypass plug installed?
If the water filter and bypass plug have been removed from your LG refrigerator, the icemaker typically won’t work. The filter or a bypass plug must be in place to allow water to flow, but it will not be filtered.
If you have disconnected the water line from your refrigerator, your ice maker will not work.
Avoid drinking water from the fridge until the new filter arrives. You can use this water for cleaning until your replacement from Filters Fast® or another trusted supplier is installed.
That way, you won’t miss a beat in your kitchen routine, even during filter-finding delays.

Are there fake LG refrigerator water filters out there?
Fake LG water filters are another thing to be aware of if you want to grab the best one. These counterfeit filters look nearly identical to the originals, but you can tell the difference if you pay attention.
You have to watch for more than fake filters. Non-brand and expired filters can also cause trouble if you’re not careful. Using a fridge filter for longer than 6 months or opting for a non-brand alternative can risk your water quality and even your fridge’s warranty.
In short, always check that you’re getting a legitimate, fresh filter made for your fridge model. If it seems too good to be true, it probably is.
Check out this article for more information on the difference between OEM and non-OEM water filters.
Does every LG refrigerator use the same filter?
Although the same company makes LG refrigerators, not all use the same filter. This is why checking and seeing if yours is compatible is critical.
You’ll need to select your water filter based on the model. You can find this information by looking at the interior of your fridge and then using the number when you search online.

How often should I change my LG refrigerator’s water filter?
The simple answer is every six months. Easy, right? Unfortunately, with life happening daily, changing your filters is usually the least of anybody’s worries—until you realize this: every day that you neglect replacing your filter after the six-month mark is a day that contaminants collect in your filter.
Besides sounding unsavory, a clammed-up water filter presents multiple risks to your well-being and pocket. Drinking unsanitary water filled with contaminants like lead, pesticides, and arsenic can cause illnesses like infections. These pollutants also change taste and odor.
Forgetting repetitively can cause unforeseen financial woes. Clogged pipes from the buildup of particles your used filter collects can hinder water flow. This means your refrigerator will work twice as hard, consuming more energy than necessary. Before you know it, this can damage your ice maker or water dispenser, requiring repair.
Signs It’s Time to Replace Your Refrigerator Water Filter
Most LG French Door refrigerators and other modern refrigerators have an indicator light to let you know it’s time to change the filter. It’s there for a reason! However, you shouldn’t rely on this reminder, as most change filter lights are on a timer and do not indicate the quality of the water filter.
There are a few other signs that you can look for that will let you know that your refrigerator water filter needs to be changed:
- Water slowly dispensing: If you notice that your water is coming slower than usual, this could be a sign of a clogged filter.
- Change in taste or odor: If your water or ice has suddenly acquired a funky taste, this is a sign that the filter is not operating optimally.
- Cloudy water or floating particles: These are signs that your water filter needs to be changed.
It’s essential that you do not put off changing your fridge filter. Change as soon as you notice any or all of these signs, or stick to every six months. You owe it to your health, your wallet, and your tastebuds.
Remembering can be challenging, so using today’s tools is a good idea. Setting yourself a reminder on your phone’s calendar is one. But an even better one is using an auto-delivery service, like our Home Filter Club subscription program. You’ll get your filters at the time you set, jogging your brain upon delivery. All you have to do is select Subscribe + Save at checkout – that’s it!
Find the best LG fridge water filter replacements and don’t forget to Subscribe & Save!
Shop LG Refrigerator Water Filters
Where to Find the Water Filter Housing in Your LG Refrigerator
In most LG refrigerators, the fridge filter is inside the cabinet, toward the upper left corner.
This placement keeps the filter out of the way but still accessible for quick changes. Your filter housing can differ from model to model, so check your owner’s manual.
How do I install a new LG water filter?
The location of your filter and how to install it can vary by model. Here are some simple steps you can follow for installation.
- Prepare: Locate where your fridge filter is and move any food, bottles, or containers that might get in the way during the filter removal and installation process. You may also want to lay down a dish towel, paper towel, or a small cup or container to catch water drips.
- Uninstall the old Filter: Investigate the filter and housing for instructions on uninstalling it. It may say “Press,” “Twist,” or have arrows. These will help make the process easier. If there are no instructions, gently twist or pull at the filter until it starts to move.
- Install the New Filter: Remove any plastic wrap or protective caps on the filter. Carefully line up any arrows or tabs with the housing. You may have to tilt the filter slightly or push on it before it locks into place. Slowly turn the filter until it tightens. Do not twist or try too hard, which may damage the housing. Once the filter feels secure, close the filter cover.
Don’t Forget to Flush the Filter
Before you enjoy a fresh-filtered glass of water straight from your fridge after replacing the filter, flush the filter. Flushing the filter helps remove any trapped air, debris, or carbon dust that can occur when you replace your filter.
Here are a few quick tips for flushing filters:
- Check your manual. You should find specific instructions for how to flush your filter exactly.
- Go for Gallons. Before drinking from your fridge, you’ll want to dispense at least 2.5 gallons of water through its dispenser, which can take about 5 minutes.
- Cycle it. Rather than dispensing a continuous stream, flush for 30 seconds, then let it rest for about a minute before repeating. Doing this can prevent strain on the water system.
- Keep it Smooth. Continue flushing until water is flowing out smoothly and clearly.
Flushing your filter isn’t just recommended, it’s vital. Although consuming the water without flushing the filter first won’t harm you, it may cause your water to taste funky or bitter and less clear.
Clean Filters, Pure Water – Guaranteed
Ensuring your LG refrigerator operates well by performing good maintenance is essential. This ensures that your food is fresh and your water and ice are pure. Finding the best refrigerator water filters and replacing them consistently will guarantee quality water for a quality life.

















Brandon says
Hello Alma, thanks for reaching out to us. Using your model number, we were able to come up with these filters that should be compatible. https://www.filtersfast.com/p-pureh2o-ph21430-replacement-lg-lt800p.asp?mod=73689. Hope that helps!
Alma Cwik says
I need help finding water filter for my
LG LSXS26326S Refrigerator . Can’t seem to find correct filter numbers.
Thank you
Brandon says
Hello Paul, thanks for reaching out to us! I looked up your model number on our site and it seems this filter should be compatible with your fridge. LG LT800P Replacement Water Filter I checked it by comparing it to the HDX FML-4 filter you referred to. Please double check to be sure and if you have any more questions, contact us via e-mail at [email protected] or by phone using 866-438-3458. Hope that helps and keeps your home happy!
Paul says
We have an LG refrigerator model #LSXS26326W /02 , the water filter we’ve always used was an HDX FML-4 from Home Depot, they no longer carry that number, I need the current replacement number for that refrigerator, I’d appreciate ur help, wife is hounding me, HAPPY WIFE HAPPY LIFE “HELP”