18 Best Refrigerator Water Filters: Reviews 2021 + Buying Guide
Written by: Maria Martino // Last Updated:
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If your refrigerator features a built-in water dispenser and/or ice maker, it’s almost guaranteed to use a filter to ensure that the water is clean and tastes fresh at all times. Of course, this water filter needs to be changed every now and then.
The question is: Does it make sense to buy an expensive OEM replacement filter or is a cheaper aftermarket model more than enough? What’s the difference anyway, except for the price? And what about inline water filters as a completely different alternative? Well, you’ll get all the answer in the guide below.
Let’s find you the best refrigerator water filter!
On This Page You Will…
- Find our list of best refrigerator water filter models
- Find our refrigerator water filter reviews
- Buying guide – Learn what to consider when buying a water filter for your fridge
- Find more useful information on refrigerator water filters
No Time to Read? Check Our List of the Best Refrigerator Water Filters!
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Best Refrigerator Water Filter Reviews
Review Order
1. The #1 Water Filter for All Refrigerator Brands & Models: Clearly Filtered Universal (Inline)
In our opinion, the best refrigerator water filter in 2021 is the Clearly Filtered Universal.
As an inline water filter, the Clearly Filtered Universal is compatible with every single refrigerator brand and model that exists. So once installed, you no longer need to use the original filter that comes with your refrigerator. You can either bypass it or take it out completely, or simply use the Clearly Filtered as an additional layer of protection.
Why use this inline water filter instead of a genuine refrigerator water filter? One word: Effectiveness. The Universal Inline Fridge Filter outperforms every single of the refrigerator filters reviewed below – branded or not. That’s because it uses more filter stages and more types of filter media which allows it to target more types of contaminants and remove them more effectively (in terms of overall reduction rates).
If clean drinking water is at the top of your priority list, this is the way to go!
 Clearly Filtered Universal | |
| Price: | $$$ |
| OEM: | Yes |
| Contaminants: | 230+ |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 365 Gallons |
Our Rating
| |
Pros
- Made in USA.
- Slim 2×12-inch design easily fits behind your refrigerator and in any tight corner.
- The filter works with all refrigerator as long as there’s a ¼-inch water line (adapter may be required).
- Affinity Filtration Technology removes more than 230 water contaminants.
- Activated coconut carbon filter media adsorbs chlorine taste and odor (98.6%), chloramine (95.3%), pesticides (99.9%), herbicides (99.9%), organic compounds, and more.
- Proprietary filter media reduces lead (99.9%), arsenic (94.3%), cadmium (99.9%), chromium-6 (99.4%), mercury (99.9%), microplastics, radiation, fluoride (99.5%), perfluorinated chemicals (99.9%), pharmaceuticals (most to 99.9%), and volatile and semi-volatile organic compounds (99.9%).
- NSF/ANSI standards 42, 53, 401 are met for guaranteed performance.
- Installation barely takes 10 minutes thanks to push-fittings. All you need to do is connect the existing water line to the filter’s inlet and outlet ports.
- A mounting bracket with screws is included. The package also features a braided stainless steel line to ensure compatibility.
- 365 gallons filter life is above average saving you from frequent replacements.
- Clearly Filtered offers a 30-day money-back guarantee.
- The filter is also backed by a lifetime warranty for peace of mind.
Cons
- Nothing so far.
The following refrigerator water filter reviews are grouped by brand. For each refrigerator brand, we’ve included the most popular and most common OEM water filters. And for each OEM filter, we’ve tried to provide one high-quality off-brand alternative.
Samsung
Samsung DA29-00020B Refrigerator Water Filter (Model Number: HAF-CIN/EXP)
The Samsung DA29-00020B refrigerator water filter is for side-by-side and french-door refrigerators by Samsung that come with an ice and water dispenser.
 Samsung DA29-00020B Refrigerator Water Filter | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 14 |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 300 Gallons |
Our Rating
| |
Pros
- The Samsung DA29-00020B refrigerator water filter uses a solid carbon block for effective contaminant removal.
- It has proven to remove 97.4% of chlorine for great-tasting water without any unpleasant odors. Above that, it’s capable of removing 99.0% asbestos, 99.99% cysts, and several other harmful substances, most importantly lead (at least 99.0%).
- Filter is NSF-certified against Standard 42, 53, and 401.
- Healthy minerals remain in the water.
- Filter provides a good flow rate.
- Installation won’t take more than 10 seconds. You just need to remember to flush the filter afterwards and before using the water.
- 300-gallon filtration capacity (up to 6 months) is about average saving you from frequent replacements.
- Backed by thousands upon thousands of 5-star customer ratings.
Cons
- The only downside is that although you can buy in packs of 2 and 3 at a reduced price, this filter is not exactly cheap.
Off-Brand Filter Replacement: Waterdrop WDP-DA29-00020B
Obviously, Samsung recommends you to purchase nothing but genuine Samsung refrigerator water filters for “authenticity and guaranteed performance“. However, we don’t mind opting for a more affordable imitation as long as it’s compatible and delivers the same or even better water quality.
One of these imitations is the Waterdrop WDP-DA29-00020B. You can already tell by the name that it’s pretty close to the original – which it is! Same filter media (coconut shell activated carbon block), same filtration capacity, same installation process, 100% compatibility guarantee without leakage.
But what about the water quality? There’s no difference! This aftermarket refrigerator water filter, too, is tested and certified by NSF International against standards 42, 53, and 401.
- Lead removal: 99.6% (even better than the original)
- Cysts: 99.99% (identical)
- Chlorine: 97% (slightly less than OEM filter)
- BPA, benzene, Ibuprofen and other emerging contaminants, …
So all in all, you can expect the same results. However, Waterdrop replacement filters are much more affordable thanks to factory direct selling. In addition, you get a 30-day money-back guarantee and free shipping.
Samsung DA29-00003G Refrigerator Water Filter (Model Number: HAFCU1-2P/XAA)
This Samsung water filter is compatible with side-by-side and french-door refrigerators.
 Samsung DA29-00003G Refrigerator Water Filter | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 10+ |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 300 Gallons |
Our Rating
| |
Pros
- Uses a high-grade carbon block to remove different kinds of water contaminants including like chlorine odor and taste, and dissolved lead and other heavy metals.
- This will greatly improves the taste of your water and also makes it safe(r) for consumption.
- Protect your refrigerator from sediment build-up.
- Filtration process is certified against NSF 42, NSF 53, and NSF 401.
- Healthy minerals are preserved in the water and add to your daily recommended intake.
- 300-gallon filter capacity reduces maintenance to a bare minimum.
Cons
- Design issue with the modified version of the filter. While the old filter used to install easily, the newer version either takes some serious force to push into the housing or you have to carefully remove the smallest (left-most) tooth on either side of the filter neck.
Off-Brand Filter Replacement: Waterdrop WDP-DA29-00003G
This is the second refrigerator water filter by Waterdrop that serves as a substitute for a genuine Samsung model. Again yet again, this filter will works just like the original. Most importantly, pure water quality is exactly the same – according to 3 NSF certifications.
Basically, the only difference between the generic and the genuine Samsung refrigerator water filter is that the former costs a lot less.
Whirlpool, Maytag, KitchenAid, JennAir & Amana
EveryDrop by Whirlpool Refrigerator Water Filter 1 to 4
EveryDrop, a brand owned by the Whirlpool Corporation, provides the only genuine and certified water filters for Whirlpool, Maytag, KitchenAid, JennAir, and Amana refrigerators. All 5 brands belong to the Whirlpool Corporation.
The EveryDrop Water Filters 1, 2, 3, and 4 are the most sought-after filter models and fit different refrigerator types (see table further below).
 EveryDrop Filter 1 | |
| Price: | $$ |
| OEM: | |
| Cont.: | 29 |
| NSF: | 42, 53, 401 |
| Capacity: | 200 gal |
Our Rating
| |
 EveryDrop Filter 2 | |
| Price: | $$ |
| OEM: | |
| Cont.: | 29 |
| NSF: | 42, 53, 401 |
| Capacity: | 200 gal |
Our Rating
| |
 EveryDrop Filter 3 | |
| Price: | $$$ |
| OEM: | |
| Cont.: | 37 |
| NSF: | 42, 53, 401 |
| Capacity: | 200 gal |
Our Rating
| |
 EveryDrop Filter 4 | |
| Price: | $$ |
| OEM: | |
| Cont.: | 30 |
| NSF: | 42, 53, 401 |
| Capacity: | 200 gal |
Our Rating
| |
Pros
- Filters use NSF-certified Triple Filtration Technology to reduce a wide range of contaminants including pharmaceuticals, lead, and waterborne parasites.
- Provide great-tasting drinking water and ice safe for consumption.
- Flow rate is better than what you get with many of the off-brand replacements.
- Easy to install.
Cons
- All four filters are rated at 200 gallons of water which is relatively low and probably owed to the thorough filtration process.
- Taking into account the high price tags, cost will start to add up quickly.
- For other cons, see table below.
| Model | Replaces | Used In | Issues |
|---|---|---|---|
| EveryDrop by Whirlpool Refrigerator Water Filter 1 | W10295370A | Model is Compatible with Side-by-Side, Top Freezer, Bottom Freezer Refrigerators | Filter Pops Out of Holding Mechanism, Clogging, Hammering Noises |
| EveryDrop by Whirlpool Refrigerator Water Filter 2 | w10413645a | Bottom Freezer Refrigerators (Filter Compartment in Top Right Corner) | Clogging and Slowing Water Flow, Filter Needs to Be Flushed with Up to 10 Gallons Before First Use |
| EveryDrop by Whirlpool Refrigerator Water Filter 3 | 4396841 + 4396710 | Side-by-Side Refrigerators (Filter Compartment in Bottom Left Corner) | Water Flow Blocked |
| EveryDrop by Whirlpool Refrigerator Water Filter 4 | UKF8001 + 4396395 | Bottom Freezer and Side-by-Side Refrigerators | Slow Flow Rate Due to Design Flaw |
Aftermarket Filter Replacement (for EveryDrop Filter 4): Waterdrop WDP-UKF8001 Refrigerator Water Filter
This time we can only provide you with one aftermarket filter, for the Everydrop Filter 4.
As a reminder: Filter 4 is used in bottom freezer and side-by-side refrigerators branded under Whirlpool, Maytag, KitchenAid, JennAir, and Amana. This also includes the Maytag UKF8001 refrigerator water filter!
As you might have guessed, it’s much cheaper than the OEM model due to factory selling, but the lower price is not without drawbacks.
Yes, you get 300 gallons filtration capacity which is 50% more than what the original filter provides. And 100% compatibility is guaranteed. On the downside, the coconut shell carbon block is only certified to reduce 14 different contaminants not 30.
Bottom line: This is a situation where we wouldn’t recommend going with the cheaper off-brand replacement refrigerator water filter, because filtration performance may lag behind – unless you only care about water taste rather than overall quality.
GE
Please note: New GE refrigerators don’t allow you to use off-brand filters. That’s because GE fridge filters include an electronic chip.
GE RPWFE Water Filter for French-Door Refrigerators
The GE RPWFE refrigerator water filter is compatible with select GE french-door refrigerators, including those that use GE’s old RPWF filter.
 GE RPWFE Refrigerator Water Filter | |
| Price: | $$$ |
| OEM: | |
| Contaminants: | 19 |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 300 Gallons |
Our Rating
| |
Pros
- Independent lab tests have shown that the refrigerator filter using a carbon block is capable of reducing chlorine-resistant cysts, lead (99%), 5 trace pharmaceuticals including ibuprofen, VOCs (97.7%), PFOA and PFOS (99%), and of course chlorine and even chloramines.
- We counted a total of 22 different contaminants + VOCs on the performance data sheet.
- All testing according to official standards.
- Filtration performance is outstanding and makes water much healthier.
- Installation is extremely simple. No tools are required to replace the filter cartridge and there is no need to turn off the water supply.
Cons
- Fridge filter has a standard filtration capacity of 300 gallons, respectively up to 6 months of use. However, in the performance data sheet it’s only rated for 170 gallons of water.
- This might be why some customers noticed a decline in water flow rate or a change in taste before reaching the 300 gallons threshold, which is a clear sign that the filter has reached the end of its lifetime and needs replacement.
- Quite pricey.
GE MWF Water Filter for Side-By-Side & Bottom-Freezer Refrigerators
The General Electric MWF refrigerator water filter is for side-by-side and bottom-freezer refrigerators by GE.
 General Electric MWF Refrigerator Water Filter | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 20 |
| NSF-Certified: | 42, 53 |
| Filter Life: | 6 Months or 300 Gallons |
Our Rating
| |
Pros
- Tested and certified for the reduction of 14 water contaminants, but lab report lists 20. This includes lead (99.3%), mercury (93.2%), chlorine taste and odor (97.5%), and 5 pharmaceuticals – clean drinking water guaranteed.
- With each filter cartridge you get up to 300 gallons of water and ice, which is pretty standard.
- Thanks to twist and lock design, the filter is easy to install with no tools needed.
Cons
- Most customers have reported an excellent flow rate, while for a couple of users the flow seems to be very slow.
Generic Filter Replacement: Waterdrop WDP-MWF
Let’s make this quick: Waterdrop’s WDP-MWF applies an identical filtration process to remove 14 different contaminants from water. This has earned the refrigerator water filter not 2 but 3 NSF/ANSI certifications: 42, 53, and 401.
The filter even beats the original when it comes to lead removal (99.6% vs. 99.3%).
Other than that, easy installation and functionality without leaks is a given.
Plus, the price tag is much lower obviously. We definitely recommend this generic water filter!
Frigidaire
Frigidaire is another brand that recommends us to only use genuine water filters with their refrigerators to guarantee quality water filtration. Critics might say that the real reason behind that statement is that the company wants to sell as many replacement filters as possible, which come at a higher price than off-brand models.
To be honest, this is something we don’t really mind as long as there really is a difference in provided water purity. But is there?
There is indeed! During our research, we could only find one Frigidaire PureSource replacement filter for the ULTRAWF and the WF3CB, and this filter was only NSF 42 certified for chlorine removal. In contrast, genuine Frigidaire refrigerator water filters have at least 2 certifications and thus are guaranteed to not only remove chlorine but also asbestos, benzene, lead, mercury, lindane, BPA, and other harmful contaminants.
Simply put: Stick to the originals.
Frigidaire EPTWFU01 Refrigerator Water Filter
The EPTWFU01 is for french-door and side-by-side refrigerators by Frigidaire and Electrolux produced after 2015.
 Frigidaire EPTWFU01 | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 24 |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 200 Gallons |
Our Rating
| |
Pros
- Frigidaire water filters “Make safe water second nature (…) and keep great tasting water flowing for you and your family”.
- According to standardized lab analysis, carbon block filters out:
- Chlorine (97.4%)
- Asbestos (99%)
- Cysts (99.99%)
- Lead (99.3-99.7%)
- BPA (99.1%)
- Lindane (98.9%)
- Benzene (96.5%)
- Easy push & twist install without tools.
Cons
- The main issue when you buy on Amazon is counterfeit filters causing problems such as ice makers no longer working.
- Make sure to check for genuine filter seal on the package. It’s the only way to know your filter is authentic.
Frigidaire ULTRAWF Refrigerator Filter
First of all, the Frigidaire ULTRAWF is for use on all french-door and some side-by-side refrigerator models.
 Frigidaire ULTRAWF | |
| Price: | $$$ |
| OEM: | |
| Contaminants: | 19 + VOCs |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 200 Gallons |
Our Rating
| |
Pros
- It’s user friendly and easy to install.
- It’s NSF Standard 42, 53, and even 401 certified. This guarantees that it can handle chlorine taste and odor, many health related pollutants, and also so-called “emerging contaminants” including prescription drugs and pesticides.
- 3 certifications are a good indicator that this refrigerator water filter is indeed reliable and will provide safe drinking water for you and your family.
Cons
- We read about knockoff filters being sent to customers that resulted in poor performance and bad water taste. This is why it’s important that you buy from authorized sellers only.
Frigidaire PureSource 3 (WF3CB)
The PureSource 3 replacement filter is used in Frigidaire side-by-side refrigerators after 2009 with the filtration system located in the back, right top.
 Frigidaire PureSource 3 (WF3CB) | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 15 |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 200 Gallons |
Our Rating
| |
Pros
- Frigidaire PureSource 3 is pretty similar to Frigidaire’s ULTRAWF. Both are high in quality, provide 200 gallons of water, are easy to install, and need to be properly flushed before you should start using them.
- Certifications for NSF Standard 42, 53, and 401 reducing a total of 15 contaminants.
- Filter will make your water taste and smell much better, and you will also be protected from some of the bad stuff – think lead, cysts, asbestos, pharmaceuticals, pesticides, and mercury.
Cons
- Watch out for counterfeits!
Frigidaire PureSource 2 (WF2CB)
This is the last refrigerator water filter by Frigidaire. It’s designed for use on refrigerators after 2004 with the filtration system located in the front, right top and replaces the following filter models: FC-100, FC100, WF2CB, SWF2CB, NGFC 2000, NGFC2000, and NGFC-2000.
 Frigidaire PureSource 2 (WF2CB) | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 10+ |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 200 Gallons |
Our Rating
| |
Pros
- Features a sophisticated filtration process.
- Filter cartridge is tested and certified by NSF International to meet or exceed Standards 42, 53, and 401 for the reduction of:
- 50% chlorine
- 60% of particulates Class III
- 70% turbidity
- 30% lead
- 00% mercury
- 99% cysts
- 00% atrazine
- 00% lindane
- A bunch of other stuff with names too difficult to pronounce, including pesticides and herbicides.
- Greatly improves the odor and taste of your water before it goes into the water dispenser and ice maker.
- Thanks to slide-in-and-out technology, installation is convenient.
Cons
- Filter tends to keep kicking out and spray water everywhere. Numerous customers have complained about this.
- Others complained about their water being cloudy.
Kenmore
Kenmore Elite 9081 for Side-By-Side, Bottom-Freezer & Top-Freezer Refrigerators
The water filter is compatible with select Kenmore bottom-freezer, side-by-side, and top-freezer refrigerators.
 Kenmore Elite 9081 | |
| Price: | $$ |
| OEM: | |
| Contaminants: | 23 |
| NSF-Certified: | 42, 53, 401 |
| Filter Life: | 6 Months or 200 Gallons |
Our Rating
| |
Pros
- As per NSF certifications, the filter reduces lead and other heavy metals, chlorine taste and odor, pesticides, pharmaceuticals, and volatile organic compounds (VOCs).
- Using this filter your water will not only taste much better, it’ll also be much safer for consumption.
- No need to worry about the install. Just slide the filter in till it snaps.
Cons
- You might hear a jackhammer noise caused by air pockets inside the filter or water line. To solve the issue, you need to remove the filter and dispense some water to get any air out.
LG
LG LT500P, LT700P, LT800P & LT1000P
LG lists 4 fridge water filters mainly used in the company’s various types of refrigerators: The LG LT500P, the LG LT700P, the LG LT800P, and the LG LT1000P.
 LG LT500P | |
| Price: | $$ |
| OEM: | |
| Cont.: | 1 |
| NSF: | 42 |
| Capacity: | 500 gal |
Our Rating
| |
 LG LT700P | |
| Price: | $$ |
| OEM: | |
| Cont.: | 13 |
| NSF: | 42, 53 |
| Capacity: | 200 gal |
Our Rating
| |
 LG LT800P | |
| Price: | $$$ |
| OEM: | |
| Cont.: | ? |
| NSF: | 42, 53 |
| Capacity: | 200 gal |
Our Rating
| |
 LG LT1000P | |
| Price: | $$ |
| OEM: | |
| Cont.: | 23 |
| NSF: | 42, 53, 401 |
| Capacity: | 200 gal |
Our Rating
| |
Pros
- LG’s genuine refrigerator replacement water filters differ in provided water quality:
- LT500P might have highest filtration capacity of all filters reviewed in this guide, but its only certification is NSF 42. We would expect more from an OEM filter.
- LT700P and LT800P are both certified against NSF 42 and NSF 53 which is not bad but gets outperformed by certain aftermarket filters (more in a bit).
- Only the LT1000P supplies the level of filtration we’d expect.
- As usual, each filter needs to be changed every six months or sooner. Don’t worry, it’s easy and only takes a few minutes.
Cons
- For the LT500P, LT700P, and LT800P there are off-brand filters that are both much cheaper and certified to remove more contaminants from water.
Generic Filter Replacement for LG: Waterdrop WDP-LT500P, WDP-LT700P & WDP-LT800P
WDP-LT500P
WDP-LT700P
WDP-LT800P
These generic filters all work identical to their OEM counterparts – at a much lower price: Same activated coconut carbon filter block, same installation procedure, and guaranteed compatibility without causing leaks.
Above that, they’ve even earned more NSF certifications: 42, 53, AND 401.
Only the filter capacities vary a bit:
- At 300 gallons of water, the off-brand version lasts longer than the LT700P.
- LT800P original and imitation lasts equally long.
- LT500P is rated at 500 gallons, while the WDP- LT500P is only rated for 300 gallons.
Overall, we recommend you go off-brand here. Why pay more for OEM filter versions when you get weaker performance?
More Reviews:
Best Fridge Water Filter Comparison List
(Hint: Swipe to Scroll)
| Model | Price | Additional Info |
|---|---|---|
| Clearly Filtered Universal Inline Water Filter | $$$ | Best Aftermarket Refrigerator Water Filter |
| Samsung DA29-00020B Refrigerator Water Filter (Model Number: HAF-CIN) | $$ | Samsung DA29-00020B Uses Coconut Carbon Block Filter, Lasts 6 Months or 300 Gallons |
| Samsung DA29-00003G Refrigerator Water Filter (Model Number: HAFCU1-2P/XAA) | $$ | Uses Coconut Carbon Block Filter, 6 Months or 300 Gallons Capacity |
| EveryDrop by Whirlpool Refrigerator Water Filter 1-4 | $$-$$$ | Each Filter Needs Replacement Every Six Months |
| GE RPWFE Refrigerator Water Filter | $$$ | You Can Replace the Filter Every Six Months or 300 Gallons of Water without Turning Off the Water Supply |
| General Electric MWF Refrigerator Water Filter | $$ | Twist and Lock Design: Replace the Filter Every Six Months or 300 Gallons of Water without Shutting Off the Water Supply |
| Frigidaire EPTWFU01 Refrigerator Water Filter | $$ | Easy to Remove Old Filter and Install New Filter Every 6 Months |
| Frigidaire ULTRAWF Refrigerator Water Filter | $$$ | Easy to Insert the New Filter Every 6 Months |
| Frigidaire WF3CB Refrigerator Water Filter | $$ | Insert the New Filter within Seconds Every Six Months |
| Frigidaire WF2CB Refrigerator Water Filter | $$ | Install New Filter at Least Every 6 Months |
| Kenmore Elite 9081 Refrigerator Water Filter | $$ | Install New Filter Every 6 Months or Sooner |
| LG LT500P, LT700P, LT800P & LT1000P Fridge Filters | $$-$$$ | Filter Needs Replacement Every Six Months or Sooner |
Buyer’s Guide: Considerations When Buying a Water Filter for Your Refrigerator
OEM vs. off-brand, compatibility, NSF certifications – finding the best fridge water filter can be challenging with such a great number of brands and products on the market. Well, this should help:
OEM vs. Aftermarket (Generic) Refrigerator Water Filters
OEM stands for “Original Equipment Manufacturer”. In other words, an OEM filter is manufactured and distributed by the same company that made the original refrigerator. For example:
Let’s say you own an LG refrigerator. The easiest way would be to buy a genuine replacement refrigerator water filter also from LG. But you don’t have to. You could also opt for a replacement solution provided by an off-brand manufacturer. In other words, aftermarket or off-brand refrigerator water filters are designed to fit certain refrigerator models made by another company.
On the upside, buying a filter imitation can save you quite a lot of money. Prices vary, but aftermarket filters are oftentimes 2, 3 or and even up to 4 times cheaper.
On the downside, the level of water quality you get might leave much to be desired. All that most of the really cheap filters do is reduce chlorine and other impurities to improve water aesthetics (taste and odor), but they won’t help to eliminate much of the harmful stuff, such as lead.
Bottom line: While trying to save money is a good habit, you should exercise caution when it comes to buying a replacement water filter for your refrigerator.
Filter Compatibility
Another important criterion for choosing a refrigerator water filter is compatibility. If a filter is not compatible with your fridge, it won’t fit at all or at least not properly. The latter is a common cause for leaks.
Therefore, as your first step, you need to find your refrigerator’s model number. The number can be found in the owner’s manual and should also be printed on a label affixed to the refrigerator itself. Depending on the fridge type, the label can appear
- on the upper right or left side wall inside the refrigerator or freezer,
- on the face frame,
- behind crisper drawers,
- or behind kick-plates.
This is what an example model number looks like: LFX28991ST
Once you’ve obtained the model number, you can match it to the list of refrigerators that a certain filter supports.
Pro tip: Use Amazon’s Partfinder to ensure compatibility. Simply enter your refrigerator model number into the search bar on top of a filter’s product description page.
Another way to go about this is to identify the old filter. A part number should be printed on a sticker affixed to its side. Then you can go looking for an identical replacement or a compatible substitute.
Contaminant Removal & NSF Certifications
Depending on where you live, different kinds of contaminants may be present in your water supply. This is why, generally speaking, not every water filter is suitable for every household.
The safest way to ensure that the water you and your family consume is healthy is by sending a direct sample to a professional lab for analysis. Only by knowing what potentially harmful contaminants you’re facing, can you seek the ideal filtration solution. As an alternative, you can consult the latest Consumer Confidence Report of your local water utility.
What’s more, anyone could simply go online, import a random refrigerator filter from China, and sell it in the U.S. claiming it will remove fluoride, lead, pesticides, herbicides, asbestos etc. But only certifications from independent labs provide proof.
For refrigerator water filters, what you need to look for are NSF 42, NSF 53, and NSF 401 certifications.
- NSF Standard 42 is all about water taste and smell. It certifies a filter’s capability to eliminate chlorine and certain solid particulates. Every filter on this page is certified to NSF Standard 42.
- NSF 53 is for harmful contaminants including cysts, heavy metals like arsenic, volatile organic compounds, disinfection byproducts… – you name it. Not all of the filters reviewed above were able to meet the requirements of this standard.
- NSF 401 is for emerging contaminants like pharmaceuticals. As with standard 53, not all water filters on this page are tested or certified to NSF 401.
In addition, there is NSF Standard 372 certifying lead-free material. Obviously, you want only lead-free material used in any water filtration system.
Water Filtration Capacity
A filter’s capacity determines how many gallons of filtered water and ice it can provide before it requires replacement. For refrigerator water filters, the standard filtration capacity is 300 gallons. Some models may provide no more than 200 gallons, while others last for up to 400 gallons.
What we’ve noticed, however, is that filters which remove a wide range of contaminants oftentimes have a lower gallon rating. We assume that, due to the more thorough filtration process, the cartridges are prone to clogging. Thus, lower capacity isn’t necessarily a bad thing. Sure, you will need to change filters more frequently which adds to the costs, but you’ll also get better water quality.
Inline Filter
Of course, you don’t need to worry about filter compatibility etc. if you simply install a universal inline water filter. This is also the best option in regards to contaminant reduction rates and filter life.
Design Quality
You only need to pay attention to design quality when opting for a generic water filter for your refrigerator. The best way to go about this it to check plenty of customer reviews, especially the bad ones.
Installation
There usually is no need to worry about difficulty of installation. OEM or off-brand, a compatible filter should fit your refrigerator with ease. The same goes for inline filters.
Cost & Warranty
Last but not least, cost and warranty.
We’ve mentioned this before: You can save some cash buying an aftermarket refrigerator filter. Just don’t make the mistake and put your health at risk only to get a $10 discount.
As for warranty, most filters are warranted for lifetime for peace of mind.
More on Refrigerator Water Filters
What is a Refrigerator Water Filter?
A refrigerator water filter filters the water before it comes out of the water dispenser. And, in case your fridge features and ice maker, it also provides for crystal clear ice cubes.
Most refrigerator water filters are based on an activated carbon block. It’s most effective at removing chlorine and other chemicals, several heavy metals, and a bunch of other stuff.
The main advantage of using a refrigerator water filter is that it provides water of higher purity that also tastes and smells better. But, sophisticated filters aren’t cheap.
How and when to change a filter depends on your refrigerator model – anywhere from 2 to 6 months is possible.
How Do Refrigerator Water Filters Work?
One of the most common questions we get asked about refrigerator water filters is if they really work. The short answer is: Yes, refrigerator water filters do work. However, some are more effective at removing a wide range of contaminants than others.
Usually, refrigerator filters use activated carbon as their primary filter media. Activated carbon adsorbs impurities from water and traps them in its surface pores. Thereby, 2 factors determine the effectiveness of the filtration:
- How long the water is in contact with the filter medium
- The volume of the filter medium
That’s why, generally speaking, large filters perform better than small ones.
Advantages and Disadvantages of a Fridge Water Filter
Advantages
Improves Taste and Odor
A genuine fridge water filter improves the taste and smell of your drinking water.
Removes Contaminants
Aside from improving water aesthetics, a fridge filter may remove contaminants that can be harmful to your health. Depending on the exact model, this includes lead and other heavy metals, pesticides, and all kind of organic contaminants.
Cost Effective
A water filter saves you from buying water bottles. If you compare the costs, doing your own filtration is a lot cheaper.
Long-Lasting
200 to 400 gallons filtration capacity means you don’t need to change filter cartridges overly frequently which is convenient.
Disadvantages
May Affect Water Pressure
Chances are that thorough filtration reduces output water pressure.
Expensive
Buying a water filtration system may be more affordable than buying water bottles. But, it’s still more expensive than drinking straight from them tap.
How to Install/Change a Refrigerator Water Filter
How to install or change a new refrigerator water filter depends on what type of filter your refrigerator uses.
If you’re having difficulties locating the water filter in your refrigerator, here’s where you can find it:
- In-grille filters – The grille is located at the bottom front. The filter is likely to blend with the grille making it harder to see. The filter can be removed with a turn or push.
- Canister filters – In most cases, canister filters are located in the top food compartment inside the refrigerator. They are shorter than in-grille filters but have a larger circumference. In order to remove a canister filter simply give it a turn.
- Drop-down filters – Drop-down filters are stored in an extra container which can usually be found in the topmost food compartment. You need to open the container to remove the filter.
- Slide-out filters – Slide-out filters are also located in the inside of the refrigerator. They eject if you give them a quarter turn or press a button/the filter itself.
All in all, installing a water filter in almost any refrigerator is a piece of cake. In 95% of the cases, you don’t need tools, you don’t have to disconnect your fridge from the water supply, and you certainly don’t require any special training.
It’s simply a matter of removing the old filter by giving it a turn or pushing it in, and inserting the new cartridge in the same manner. Also, you can always consult the manufacturer’s instructions if you’re stuck. And don’t forget to flush the filter for a couple of gallons of water, also known as priming, before you start using the water.
How Often Should You Change the Water Filter in Your Refrigerator?
You already know that refrigerator water filters rely on activated carbon for contaminant removal. These contaminants get trapped in the pores on the carbon surface. At some point, all pores will be filled and can’t absorb any more impurities. That’s when you need to change your filter at the latest. Of course, it makes much more sense to replace the cartridge some time before that to ensure you do not see a drop in water quality.
So, there’s no strict rule that says you have to replace a refrigerator water filter every 6 months or so. What refrigerator manufacturers do, however, is provide gallon ratings. These ratings are a rough guideline for how long a filter is going to last before it needs replacement. The standard gallon rating is 300. For some of you, 300 gallons may last for 4-5 months. For larger families, 300 gallons will only be enough for 2 months of filtered water.
Bottom line: How often you should change the water filter in your refrigerator depends on your water usage.
But not only that, it also depends on your feed water conditions. For instance, water with high mineral content a.k.a. hard water may cause a filter to clog quickly. As a consequence, water flow decreases dramatically to the point that it just takes too much time to wait for the water to be ready.
Indicators
If you wait until you see a drop in flow or notice a change in how your water looks, smells or tastes, your family might have already been exposed to a number of dangerous substances. Luckily, there are better indicators that will tell you when it’s time to replace a fridge water filter.
- Listen to the manufacturer. If a filter is rated at 200 gallons, don’t use it past that point. Sure, we know that companies want to sell as many replacement parts as possible and their filters’ “true” capacity might be twice as high as specified, but you just cannot be 100% sure.
- Write done the date of the last filter replacement. It helps to estimate how much water you have used at any given point.
- Don’t put your faith in specifications such as “going to lasts for 6 months“. No manufacturer or seller knows how much water you use on a daily basis.
- We don’t consider the indicator light of any refrigerator to be really useful.
- You should only rely on your senses if there are no contaminants in your water that can pose a serious health risk. It’s easy to make out the presence of chlorine in water and the absence of it. But lead, for example, is highly toxic in small dosages that are impossible to sense.
Best Refrigerator Water Filter Brands
In our opinion, the best brands for refrigerator water filters are the same brands that also manufacture the refrigerators themselves, namely: Samsung, LG, Frigidaire, Whirlpool, GE, Maytag, KitchenAid, JennAir, Amana, etc.
The only exception is Waterdrop, because it’s the only brand selling generic fridge water filters tested and certified to up to 3 different NSF standards for effective and broad contaminant removal (not just NSF 42 for chlorine taste & odor). In some cases, Waterdrop filters even beat the OEM competition in terms of overall contaminant removal, not to speak about the much lower cost.
Frequently Asked Questions (FAQ)
- Can an old refrigerator water filter make you sick?
Mold, bacteria, and other pathogens could have accumulated inside the filter, so yes. - Can I use my fridge without the water filter?
It depends on the product design; some units run without a filter, others don’t. - What do refrigerator filters filter out?
They all filter chlorine odor and taste, and sediment. Some even help with more harmful stuff – think heavy metals (e.g. lead, mercury), chlorine-resistant cysts, pharmaceuticals (e.g. Ibuprofen), and pesticides. - Do refrigerator water filters really work?
They do work, yes. In fact, most of them work pretty well! - Is there a filter that fits all refrigerator brands?
Not really. Only an inline water filter can be used with all refrigerator brands.
Questions about the best fridge water filter? Ask away!
And remember: We will continue adding new refrigerator water filter reviews so make sure to come back.
About the Author Maria Martino
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