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10 Best Universal Inline Refrigerator Water Filters And Their Reviews For 2021

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Tim Rhodes

Are you confused about which universal inline refrigerator water filter to buy?

You are not alone.

With so many filter brands in the market, it can overwhelm anyone.

You might have questions like will it fit, how long it will last, and how is the quality, etc.

To answer your questions and help you decide what filter to buy, we have compiled a list of best inline refrigerator water filters in the market. 

This is a list of the ten best universal inline refrigerator water filters along with their pros and cons.

We made this list for you so that you can decide which product meets your requirements.

1. GE GXRTDR Exterior Refrigerator Filtration System

Exterior Refrigerator Filtration System
This is a quick easy to install a refrigerator filtration system that comes from a trusted old American brand.

GE GXRTDR comes with a female push to connect hassle-free fittings; these fittings do not need any tools to install, they just snap in place.

It can be fitted with existing ¼ inch tubing.

This filter fits with all the refrigerator/ice-makers without any built infiltration.

It only weighs 11.2 ounces and has a sleek design which makes it ideal for external installation. 

It can be installed in any orientation and anywhere so it does not take up much space.

So you can take it wherever you want in your RV or boat.

It cleans impurities like sediments, lead, mercury, and chlorine.

These impurities especially heavy metals like mercury and lead can cause cancer.

Once you start using it, your water will become healthier, tastier, and smell better.

This filter is certified with NSF/ANSI particulate reduction of class V, WQA has also certified it according to CSA B483.1.

So you don’t have to worry about the cleanliness of your water for your family and friends.

Its usable life is 2500 gallons or six months, whichever comes first.

It can filter 2.5 gallons per minute with an inlet pressure of 25 psi to 125 psi.

Pros & Benefits:

  • Easy installation
  • NSF and WQA certifications
  • Trustworthy brand


2. Omnipure K2533JJ Inline Water Filter With Quick Connect

Inline Water Filter
This is one of the best universal inline refrigerator water filters.

You can hook it to any kind of refrigerator or ice maker.

It’s very easy to install because it comes with ¼ inch quick-connect compression fittings.

You won’t need any tools to install it, the compression fittings snap snugly with a watertight fit.

You can use copper as well as plastic tubes to connect it to your refrigerator or ice maker. 

These filters come in various lengths and diameters.

The 2-inch diameter filter comes in 6 inch and 10-inch length, and 2.5-inch diameter filter comes in 6,8,10, and 14-inch length.

It can filter about 1500 gallons of water in its working life, although this measure can go up to 3000 gallons for bigger filters.

This choice of sizes makes it truly universal inline filters because it can be fitted anywhere.

It cleans organic impurities and chlorine from water which removes any bad smell or taste from water.

Omnipure’ K2533JJ model weighs 12 ounces and its dimensions are 10 x 2 x 2 inches.

This filter comes in a sleek cylindrical shape which makes it ideal for installation in any place.

You can hook it to your refrigerator, coffee maker, ice maker, etc.

Its connectors are directly molded with its body, this ensures no seepage or leakage even in high pressure.

Pros & Benefits:

  • Size choice is good
  • Easy to install
  • Inexpensive 


3. PureWater Inline Water Filter

PureWater Inline Water Filter
This American made inline water filter connects easily with most refrigerators, ice makers, coffee makers, water coolers, etc.

This filter comes with a lifetime warranty and telephone support.

It will make sure you and your family get clean and tasty water.

As it is certified by NSF against ANSI/NSF for filtration of chlorine class I and reduction of odor.

It uses high quality granular activated carbon for filtration.

It is made up of coconut shells which is the highest quality filter you can use.

Activated carbon’s extremely porous and high surface area ensures thorough filtration chlorine and other harmful chemicals from water.

It is capable of filtering most contaminants like chlorine, THM’s, pesticides, herbicides, and heavy metals like lead and mercury.

It also prevents scaling.

Even a trace amount of these chemicals can cause poisoning and even result in cancer.

This filter has quick-connected fittings for ¼ inch water line which takes only a few minutes to install without any tools.

It’s has a sturdy and leak-proof design which makes it very convenient for a variety of uses, like an RV, campers, and boats.

Purewater filters don’t use any glue or binders to connect fittings which considerably reduces the risk of contamination.

Instead of using glues to bind the cap and the body, they use the spin welding technique.

This technique makes the joints of the filter very tough and less prone to breakage.

This technique makes a tough seal that can withstand the very high pressure of water.

It can be used for 1500 gallons or for 1 year whichever comes first. This is more than adequate for a family.

Pros & Benefits:

  • Doesn’t use any glue or binder
  • Easy installation
  • NSF and ANSI/NSF certification


4. LASCO 37-1821 ICE Maker Inline Filter 

ICE Maker Inline Filter 
This is another very popular universal inline filter you can buy.

It shelves activated carbon filter which removes sedimentation, chlorine, THM’s, turbidity and improves taste and odor.

If you have corrosion and scaling problems in your water LASCO filter will effectively cut it.

It comes with fume and smokes extractor filter.

Most companies do not offer anything like it. 

You will have to change it after 1500 gallons or six months whichever comes first.

If the pressure of the filter reduces, its time to change the filter with a new one.

It is certified with NSF standards which means it filters out compounds like chlorine, THM’s along with cancer-causing heavy metals like lead and mercury. 

It only weighs 8 ounces and its dimensions are 2 x 2 x 10.5 inches which are a very sleek design and can be fitted in any refrigerator or ice maker.

It comes with brass fittings which include brass sleeve and brass slide nut to install copper tubing.

You can also use plastic tubing, but you will have to install it with the help of plastic sleeve, brass insert, and slide nut.

It is not a very complicated installation process but it takes more time and effort than now popular compression fittings.

Pros & Benefits:

  • Comes with fume and smoke extractor filter
  • NSF certified 
  • Includes brass fittings


5. Watts Inline Water Filter 

Watts Inline Water Filter 
This is a big universal inline filter weighing 1.75 pounds also used for commercial purposes.

Its design is very strong, it can be used in any place and orientation.

So along with refrigerators, ice makers, and water fountains, it can also be used in boats, RV’s, etc. 

This filter is produced by ‘Premier’ a leading company in the water filtration industry for a very long time.

This company holds 5 patents of unique water filtration systems, this represents the commitment of the Premier company.

Watts inline filters are manufactured with leading technology and great quality control, this ensures great quality in their products. 

Watts inline water filter uses KDF or Kinetic Degradation Fluxion technique for filtration.

KDF filtration technique can filter up to 99% water-soluble heavy metals like lead and mercury.

These heavy metals are highly poisonous and can also cause cancer. 

It comes fitted with 10-inch inline KDF filter and ¼ inch brass connectors. 

Which are a little tricky to connect, you will need to refer to the manual to install them.

But these connectors ensure a great fit and do not allow any leakage.

Watts inline filter is certified by both WQA for NSF/ANSI 372 for lead-free and NSF/ANSI for 42 for filtration of chlorine.

It is certified to filter chlorine, odor, contaminants, sediment, and particulates. It also stops bacterial growth, as it can be very harmful to humans.

It can be used for commercial purposes because it has a longer life and it can filter up to 20,000 gallons of water.

Pros & Benefits: 

  • Bigger capacity 
  • Uses newer technology
  • NSF certified


6. Woder WD-10K Ultra High Capacity Refrigerator Water Filter

Ultra High Capacity Refrigerator Water Filter
Woder universal inline filter uses advanced selective filtration technology. 

Manufacturers of this filter claim that it can remove 99% of contaminants and make your water as fresh as spring water.

Their filters don’t use reverse osmosis like other filters do because reverse osmosis can filter out essential minerals. 

So their filters use selective filtration technology which does not filter any essential minerals like magnesium, potassium, and calcium.

This filter can be used in any refrigerator, ice maker, RVs, boats, etc.

Woder WD-10K has a life of 3 years/10,000 gallons.

This is leading in this industry, as no other filter lasts for more than 1 year.

It has a water flow rate of 3 gallons per minute which is also very huge considering most companies offer only up to 0.5 gallons per minute.

It is highly portable because it does not need any tools for installation and only weighs 1.35 pounds, its dimensions are 12.2 x 2.76 x 2.76 inches.

It can be fitted with any tubing ¼ inch but it will not fit the braided hose.

This filter is entirely made in the USA and is certified by WQA for NSF/ANSI for chlorine, taste, odor filtration, and NSF/ANSI for heavy metal filtration.

These certifications ensure the purity of your water because it eliminates lead, heavy metals, chlorine, mercury, PFCs, TMHs, and VOCs.

It is very easy to install, it comes with female compression fittings which do not need any tools for installation.

Pros & Benefits: 

  • Uses advance selective filtration technology
  • The great lifespan of 3 years
  • Certified by WQA for NSF


7. EcoPure EPINL30 In-Line Refrigerator Filter

Ecopure EPINL
This filter boasts a design that can last for five years without needing any filter change.

No other company offers filters with such a great life, it is truly a great feature.

However, the life of any filter depends on the water it is fed. So you will have to check it from time to time. 

It has a very sleek design so that it can be hooked to any refrigerator, RV, boat, etc.

Very easy to install with push to connect fittings so you won’t need any tools to install this filter.

You can install it in any orientation vertical, horizontal, under the sink anywhere. 

It is certified by NSF for NSF/ANSI 42 water filtration standards. 

It will make sure that your family gets clean and tasty water free from contaminants like chlorine, sediments, microbes, etc.

It also removes harmful heavy metals from water; these metals are lead and mercury and can cause serious health problems.

This filter comes with easy to install ¼ inch female quick push compression fittings.

These fittings are very easy to install because they do not need any tools.

It is designed and assembled completely in the USA. 

It is also designed to be very handy and portable as it only weighs 1 pound, and its dimensions are 13.5 x 7 x 3 inches.

Pros & Benefits:

  • 5-year life
  • NSF certified
  • Can be fitted in any refrigerator


8. CuZn ILFC-200 Chloramine + Fluoride Inline Refrigerator Water Filter

Chloramine + Fluoride Inline Refrigerator Water Filter
CuZn ILFC-200 water filter is another great product for your water filtration needs.

This filter is unique because it holds a 4 stage filtration system in just one sleek and portable design.

It is designed as a universal filter that can be fitted with almost any kind of refrigerator, ice maker, or hooked to any RV, boat, etc.

It only weighs 1.2 pounds and its dimensions are 2.75 x 13.5 x 2.75 inches.

It can be used for 1 year or for 500 gallons whichever comes first.

This is filter has a four-stage filtration process.

This filtration process includes: micro sediment membranes, KDF-55 filtration, KDF-85 filtration, ACSD-17 filtration media, and activated coconut shell carbon.

This filtration system is very unique and most filters don’t have these filtration membranes.

So, this filter is very useful in places where the quality of water is not great, as it can filter most of the contaminants. 

It can cut both organic or inorganic contaminants like chlorine, fluoride, chloramine, and heavy metals like lead, chromium, cadmium, mercury, etc.

It can significantly cut bad taste and odor by eliminating pesticides, sediment, algae, and molds.

Its selective filtration does not remove essential minerals from your water such as magnesium and potassium. 

These minerals are very essential for humans, most reverse osmosis filters remove these minerals along with contaminants. 

CUzN ILFC is certified by IAPMO to NSF 61, NSF 42 and NSF 372 standards.

It is very easy to install as it comes with quick compression fittings with no tools required, you can install it in minutes.

Pros & Benefits: 

  • It has a four-stage filtration 
  • NSF certified 
  • Capable of cleaning pesticides and herbicides


9. Applied Membranes Inc. Inline Carbon Water Filter

Inline Carbon Water Filter
This California-based water filter manufacturer has over 37 years of experience in making filtration membranes.

AMI filter has an activated carbon filter made up of 100% coconut shell carbon.

This is the best kind of activated carbon.

Applied membranes inc is the largest membrane manufacturer in the USA.

They manufacture over 8 million filters and over 20,000 filter installations in America.

Coconut shell carbon is the best kind of carbon filter it absorbs most of the organic contaminants.

Activated coconut carbon granules have a huge amount of pores that trap many of organic impurities along with heavy metals. 

It can remove contaminants like chlorine’s byproduct trihalomethanes a carcinogen, and turbidity, herbicides, insecticides, and volatile organic compounds VOC’S.

Coconut activated carbon is an environmentally friendly and natural substance.

It is made by burning coconut shells in very limited oxygen.

This filter makes your water tasty and removes any odor. 

This filter can be connected to other filter systems or can be used as a stand-alone filtration system. 

It is certified by AMI’s standards for the quality of water quality standards.

It is also certified by NSF.

It can filter up to 2500 gallons of water in its working life.

It weighs 1.21 pounds and its dimensions are 13.5 x 1.61 x 1.18 inches.

It is a very simple design that can be serviced by anyone without any earlier experience in plumbing.

It connects with any refrigerator which does not have any pre-installed filtration system like any other universal inline filter.

It is very easy to install as it comes with ¼ inch compression fittings female threads, these fittings are very easy to install and don’t require any tools.

Pros & Benefits: 

  • NSF certified
  • Easy to install
  • Made in the USA


10. Culligan Inline Icemaker & Refrigerator Filtration System

Inline Icemaker & Refrigerator Filtration System
Culligan is an 80-year-old market leader in the water filtration industry all around the world.

It uses the latest technology for manufacturing quality filtration products. 

It is independently certified by NSF to NSF/ANSI to standard 42. 

This certification is provided to filters that can actively cut the level of chlorine and improve the taste and odor of the water.

It relies on its in house technology which is par with any contemporary technologies.

It is also certified for the reduction of nominal particulate of Class 1 and Standard 53 for the removal of Cysts, Lead, Mercury, VOC, and Turbidity.

This system comes with a twist on, twist off filter mechanism which does not require any tools when you need to install or replace the filter.

It can be attached to any refrigerator, ice maker, RV, or any boat because it is very sleek and portable.

It comes with filter head with built-in bracket, water filter cartridge, mounting screws, cartridge change reminder sticker.

This particular filter is a little different from other filters as it does not come with conventional compression fittings but with different fittings.

This is a big filter that is good for home applications but a little tricky for use in RVs and boats.

It weighs 3 pounds and its dimensions are 4 x 5 x 15 inches. 

Pros & Benefits:

  • NSF certified
  • Easy to install
  • Old and trusted brand


How To Choose A Correct Filter

With so many options in the market, it is rather difficult to find the correct inline filter for your needs.

The first thing you should keep in mind while buying a filter is the quality of water in your area.

If it is relatively clean then you should go for simpler filters with one or two filtration layers because multilayered filters are expensive and not of whole use.

On the other hand, if you live in a place where water supply is rather bad and the condition of pipelines is not monitored regularly.

Then you should go for filters with multi-layered filter membranes and longer life, these filters are quite expensive but your family will get safer water.

These filters typically last for six months to one year, however, it is your usage that determines the life of your filtration system.

Look for National Sanitation Foundation (NSF) certification while purchasing any water filter, this ensures that the particular filter has been tested.

Companies offer a wide variety of filtration methods, like activated carbon filter, KDF filter, or ACSD filtration.

These filters offer varying types of filtration for chlorine, THM’S, and heavy metals depending upon the layers of filters present in these filters.

Once you have installed an inline refrigerator filter you will not have to worry about the health of your family.

The taste and smell of your water or ice will be better. 

Most of the inline refrigerator filters come with quick compression fittings these days so you need not worry about the hassle of installation.

Most of these filters will fill any refrigerator with ¼ inch copper or plastic tubing. It just snaps in place without any hassle and you are good to go.

Final Thoughts

If you live in a developed nation you probably have the best and purest water at your disposal.

You should also know waterborne disease kill millions of people around the world by both scarcity and contamination of water.

You must realize how important it is to have access to clean water just like good food.

We hope that we have helped you choose the right universal inline refrigerator water filter for your home.

Don’t rely solely on government for potable water, “add your layer of protection to your water”.

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