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Best Inline Water Filters 2019

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Waterborne diseases are no joke – every year, 3.4 million people around the world die because of drinking unsafe water.

Clean water isn’t only essential for drinking but also for cooking and cleaning. If you don’t have access to clean water, your health and lifestyle would be at stake!

Do you know what’s in your water?

From chlorine and fluoride to lead, dirt, and viruses, several harmful chemicals and particulates may inhabit your water, making it contaminated and unsafe for use at homes and commercial settings.

If you care about your health and the health of your family members and of the people around you, the best way to make your water safe for everyday use is by filtering it.

Installing a water filtration system is the ultimate way to remove all kinds of impurities from water. It also means that you won’t need plastic bottles, which in turn will benefit the environment and cut down your costs. Moreover, your water will become softer, which means you’ll need less soap for your showers, kitchen, and laundry.

Now, there is a wide range of options available in the market when it comes to a highly functioning water filtration system, but we’ll talk about the one that’s the most advanced.

What Are Inline Water Filters?

There are plenty of different types to choose from, but if you are looking for inexpensive yet effective options, inline water filters are your best bet

Inline water filters feature the most direct approach to water filtration. As the name suggests, it involves installing a water filter directly into a water line so that water is filtered as it passes through it.

This innovative technology doesn’t only save space but also ensures maximum removal of dirt and harmful substances. It also reduces the color and odor of chlorine and limits limestone formation to prevent equipment damage.

Inline water filters can be put into a water supply pipeline or any of your home appliances, even washing machines. Durable and efficient, they are an install-it-and-forget-it kind of water filters.

Why Do People Use Inline Water Filters?

People like and trust inline water filters in their home and office settings for a number of reasons. Some of these are:

  • They are versatile and can be used to filter water in more than one appliance. You can connect one in line with your kitchen tap, refrigerator, water cooler, icemaker, washing machine, and drink machines.
  • They ensure the highest level of filtration, regardless of where you install them.
  • They are highly durable and an ideal long-term investment.
  • They are easy to install and replace.
  • They are an economical and cost-effective choice for both residential and commercial use.

Overall, inline water filters are a worthy investment that offers durability, efficiency, and amazing filtration capabilities for a safe and healthy water usage experience.

Best Inline Water Filter

Woder 10K-DC Ultra High Capacity Water Filter

The Woder 10K-DC is a best-rated inline water filter for refrigerator, icemaker, and other appliances in a commercial setting. It is specially designed to last up to 10,000 gallons, which means that it will work efficiently for up to 3 years.

One thing to note here is that this filter should always be used with municipally-treated or disinfected drinking water. This high-quality water filter has an advanced selective filter technology that promises to remove 99% of the contaminants, including lead, chlorine, chromium 6, VOCs, heavy metals, mercury, as well as bad odor, taste, and smell from your water. It keeps the minerals profile intact to ensure that your drinking water is not low in minerals.

Installing a Woder 10K-DC water filter ensures a consistent flow of clean, pure, healthy water that smells and tastes perfect, eliminating the need to keep water bottles in your refrigerator.

This filter comes with direct-connect hoses made to fit the standard 3/8” cold-water valves and faucet stems under the sink. Hence, the installation is very easy and quick and doesn’t require special tools or assistance from a professional plumber.

Priced at $70.84, it has been tested and certified to provide a steady stream of clean, healthy under-sink filtered water.


  • Has an impressive capacity of 10,000 gallons
  • Features a special filter technology that claims to remove 99% of the contaminants
  • Is versatile and can be used with different appliances
  • Easy installation in just 15 minutes
  • Comes with quick-connect hoses


  • A bit expensive for users who are on a strict budget

Best Refrigerator Inline Water Filter

Culligan IC-EZ-4 EZ-Change Inline Ice Maker and Refrigerator Filtration System

The Culligan IC-EZ-4 EZ-Change is a well-known inline water filter for the icemaker and refrigerator. It is the best product for clear ice and pure drinking water in both residential and commercial settings. To top it off, its installation is also super easy and doesn’t require professional assistance.

This water filter works wonders when it comes to removing class one particulates. The IC-EZ-4 filter cartridge reduces chlorine, mercury, lead, MTBE, chloroform, cyst, and turbidity from the water. In addition to removing contaminants, it also eliminates unpleasant odor and taste.

One of the best things about this inline water filter is that it features an easy filter changing procedure. The replacement filter cartridge comes with quick-connect fittings that can easily be twisted on and off when need be. The filter cartridge can filter up to 500 gallons of water, lasting for around 6 months.

The product features head assembly, IC-EZ-4 cartridge filter, cartridge change reminder stickers, and mounting screws. Furthermore, it allows a water flow rate of 0.5 GPM at 60 psi from the faucet. Priced at $62.99, this water filter might be a slightly expensive option for some buyers. However, considering the benefits it offers, we think it’s totally worth it!


  • High-quality inline water filter for refrigerator and icemaker
  • Has an IC-EZ-4 filter cartridge for the removal of class one particulates
  • Removes unpleasant odor and taste from water
  • Accommodates up to 500 gallons
  • Installation is simple and doesn’t require professional assistance or supervision
  • Features a twist-on, twist-off filter mechanism for a hassle-free replacement


  • Doesn’t include a standard water hose line
  • May not work well with extra hard water

Best RV Inline Water Filter

Camco 40045 TastePURE Inline RV Water Filter

This Recreational Vehicle (RV) inline water filter is a large capacity filter that is specially designed to provide safe and clean water for everyday use for an entire season. It lasts an average of 3 months for a total of 6 months.

It features a unique granulated activated carbon (GAC) filtration mechanism that significantly reduces bad odor and taste in water caused by chlorine and other sediments. This multi-functional water filter can be attached to any conventional water hose to deliver clean and healthy drinking water. It works great for RVs, boats, camping, pets, gardening, and much more.

The Camco 40045 TastePURE is a 20-micron sediment filter that works amazingly to get rid of particles greater than 20 microns. With premium KDF, it makes sure that bacteria, fungus, and mold don’t grow inside the filter when it is not in use.

Moreover, this durable filter has a wide body that makes for better water flow. Priced at $19.79, this inline water filter is easy to install. After installation, you simply have to allow the water to run freely for a few minutes to flush out those loose carbon bits.


  • Features durable activated carbon filter
  • It is easy to install, no assembly required
  • Streamlines water flow
  • Removes hydrogen sulfide, aluminum, and heavy metals
  • High-capacity chlorine filter
  • Features Kinetic Degradation Fluxion (KDF) for exceptional results


  • Is not suitable for use in fish tanks and ponds
  • Warranty is limited

Runners Up for Best Inline Water Filters

Watts Inline Water Filter



The Watts inline water filter is a high-capacity filter that can filter up to 20,000 gallons. With this kind of capacity, you can expect it to work perfectly for 1 to 2 years. It also doesn’t pose the need for frequent maintenance – simply checking the system after every 6 months will guarantee optimal efficiency. This certified chlorine filter also helps in reducing the scale buildup. It is the best option for users who’re looking for a filter system that ensures clarity and purity of water while improving its taste.

This water filter features a special filtration media that prevents bacterial growth to ensure the extended life of the filter. It comes with quick-connection adapters that can be directly added in line with your current plumbing system.

This Watts model is perhaps the best inline water filter for the icemaker, refrigerator, water coolers, water fountains, boats, coffee makers, and RV campers. It is made from premium-quality materials to ensure maximum durability and functionality.

This inline water filter features KDF fluid treatment. It combines copper and zinc to form a pure formula through a chemical process called redox. This process ensures the elimination of unpleasant smell, odor, and taste from your water.  For a price of $30.68, this inline water filter offers unmatchable benefits.


  • Impressive filtration capacity
  • Comes with KDF treatment
  • Simple installation; doesn’t require assistance from a plumber
  • Can be used with a variety of appliances
  • Quarter-inch brass connectors are included
  • Tested and certified for best results


  • Some users complain about leakage

EcoPure EPINL30 5-Year In-Line Refrigerator Filter

The EcoPure EPINL30 is one of the most long-lasting inline water filters in the market. Featuring a universal design, it connects easily with most of the top brands of ice makers and refrigerators, including Samsung, Whirlpool, LG, GE, and Kenmore.

This RV inline water filter ensures that the filtered water will be pure, clean, and healthy for daily use. It is also an amazing inline water filter for the icemaker, producing clear ice at your home, camper, or boat. This chlorine filter protects your water from sediments and unpleasant odor and taste.

It comes with 1/4” push-to-connect fittings to quick installation in plastic and copper waterlines. The written installation guide further makes the process easy. Designed, assembled, and engineered under a strictly controlled environment, this filter guarantees uncompromised results.

This inline water filter featuring a robust design is available for only $27.77!


  • Lasts 5 x longer than traditional water filters
  • Highly compatible with appliances from popular brands
  • Removes the odor and taste of chlorine as well as sediments from your water
  • Comes with quick-connect fittings for plastic and copper waterlines
  • Includes a written installation guide
  • Promises to deliver clean, pure water at all times
  • Offers the best value for money


  • Some users complain of leaks

Omnipure Universal Inline Water Filter (K2533)

The Omnipure Universal is a budget-friendly, high-quality alternative inline water filter for refrigerator cartridges.

Featuring granulated activated carbon, it is perhaps the best chlorine filter out there. It efficiently removes the odor and taste of all kinds of contaminants to ensure that the water you use is 100% pure, safe, and healthy.

It comes with 1/4” quick connect fittings, which make installation fast, easy and convenient. It should be put into the refrigerator water feed line or it could also be used as a polishing filter on reverse osmosis water systems or with an icemaker, drinking fountain, and under-counter water systems.

The width of the cartridge is 2 inches while its length is around 10 inches. With such compact dimensions, this inline water filter can be installed in even the smallest spaces. Priced at just $43.89, it comes with a full-service life of one year and its filtration capacity can tackle up to 1500 gallons.


  • One of the most affordable inline water filters out there
  • High-grade chlorine filter
  • The filter can accommodate up to 1500 gallons
  • Comes with built-in quick-connect compression fittings
  • Easy to install; doesn’t require any tools


  • The direction of its water flow is not market, which poses the risk of accidental backward installation

The Mechanism: How Do Inline Water Filters Work?

Inline water filters are placed to sit directly on waterline or appliance so that the water passes through it before reaching the tap or appliance.

Considering the compact size, these filters are commonly used in household settings and are installed under the sink. One installed, the filter will run water safety checks and remove pollutants and contaminants in the water.

While different models of inline water filters may use different mechanisms to filter the water, the basic principle they follow remains the same. Here’s how they work in general.

When the water enters the filtration system, it first reaches a sediment pre-filter. This filter works to get rid of the large particles, such as sand, debris, rust, silt, or sediment. Apart from this, it is also responsible to keep the other filters working in optimal condition for long periods of time. So, basically, if there’s no sediment pre-filter, the next filters will warrant more frequent repairs and replacements.

After the water passes through the sediment pre-filter, it reaches the activated carbon filter. This is a crucial step because most of the contaminants in the water are removed here. This filter has a large porous surface that is lined with nooks and crannies, which attract the contaminants through a natural process called adsorption.

The activated carbon filter is responsible to remove most of the particulates, including chlorine, sediment residue, and any volatile organic compounds. It also takes care of any unpleasant smell and taste in the water. Sometimes, this filter is also treated with special substances to have different effects. In some models of inline water filters, a small amount of silver is added to the carbon filter to give it amazing antibacterial properties.

After the carbon filter, the water passes through the copper-zinc and mineral filter. At this point, any remaining contaminants are removed in the water, including chlorine and heavy metals. It also fights bacteria and other microorganisms found in the water as well as diminishes the scale in the water.

The next step is optional and some inline water filters may not have this but in some models, water goes through a water softener or a descaler. Manufacturers usually use ion-exchange technology for this. In this filter, the water passes over some resin beads, which are packed with sodium ions. These ions make the water soft and a bit salty. In some models, the natural taste of water is maintained through a salt-free softener.

Now comes the post-filter. This is where the quality of water is ensured. When the water reaches this filter, only tiny particles remain. The job of this filter is to make sure none of those particles reaches your water. This mesh-like filter is full of holes that are usually of 1-micron.

That being said, some inline water filters also have a UV filter to kill any escaped bacteria, virus, or microorganisms.

After passing these highly functioning filters, the water reaches your faucet. The entire procedure guarantees that the final water is pure, safe, and healthy for your everyday use.

9 Amazing Benefits of Inline Water Filters

Here are the top nine reasons why you should use inline water filters.

1.     No-fuss Filters

Users prefer inline water filters over other conventional filters because of the convenience it offers. These filters can easily be attached to existing kitchen taps, eliminating the cost of buying and the effort of installing a new tap.

2.     Versatile Option

The versatility of inline water filters covers two different aspects: applicability and filter media.

The applications of inline water filters are never-ending. Some models can be attached with kitchen tap, refrigerator, washing machine, and water cooler while others serve as a stand-alone filter under the sink. Many users use these filters for caravans, motor homes, boats, showers, icemakers, and drink machines.

In terms of filter media, they commonly feature a mixture of carbon and ceramic filter spheres, which play a major role in determining their efficiency in removing various kinds of contaminants and particulates.

3.     Unbeatable Filtration

Whether you choose to use an inline water filter in shower filters or caravans, it works beyond just removing unpleasant taste and odor from your water.

Some advanced models boast efficiency level so high that they are able to remove heavy metals, fluoride, and bacteria from your water, making it clean, pure, and healthy.

4.     Maximum Durability

Inline water filters are specially designed to be extra durable and resistant as compared to the standard filters.

Some models may last for up to 12 months without requiring frequent maintenance hauls. If you use them properly, you won’t need to replace them so often!

5.     Cost-efficient

For starters, inline water filters are super affordable that you can buy for your home or office. Apart from this, since it doesn’t require frequent repairs and maintenance, it significantly helps you cut down on your costs.

6.     Easy Replacement

Most of the inline water filters come with push fittings or quick-connect fittings that make replacement oh-so-easy.

Furthermore, for a seamless replacement process, the filter usually comes with a sign that indicates the direction of the water flow. This makes it easy for you to understand the direction in which you should install the filter without professional assistance and supervision.

7.     Save Space

Don’t have enough space in your kitchen cabinet or counter?

Don’t worry – inline water filters have got you covered!

These filters don’t come with huge, bulky hardware as compared to the majority of water filters. Hence, they are an elegant and efficient way of saving space.

8.     Work Great in Low-pressure Environments

Unlike the standard under-sink water filters, inline water filters don’t have any special water pressure requirements. Thus, they are an ideal choice for low-pressure environments, including caravans, motor homes, and boats.

9.     At Your Service 24/7

Inline water filters are always switched on for your convenience. This means that you get access to clean, filtered water whenever you turn on the water tap.

Unlike the standard under-sink water filters that provide unfiltered hot and cold water and filtered water through an extra tap, inline water filters directly filter the water flowing through your waterline.

3 Important Things to Consider Before Buying an Inline Water Filter

Here are just a few important things you must know before you buy an inline water filter for your washing machine, refrigerator, ice maker, or kitchen sink.

§  Purpose

As explained earlier, inline water filters are placed ‘inline’ with your current water supply line. This means that you’ll get purified water as soon as the direct water passes through the filter.

Is that exactly what you need?

Not to forget, there is no option of switching the inline water filter off. It is always switched on.

Hence, if you want every drop of water coming through your faucet to be clean and purified, you should be prepared to run maintenance checks and replace the filters often.

§  Location

Before you purchase an inline water filter, you should ensure that you have proper and enough space for it at your home.

Typically, it isn’t such a big problem because these filters are rather compact in size and can adjust anywhere. But of course, you need to have a specific location in mind beforehand.

Most inline water filters are around 10 inches long and they’re considerably heavy as well, which means you’ll need a sturdy, reliable mount for them. Please note that some filters do come with their own mount, so check all the pieces included in your package.

In addition to the 10 inches for the filter itself and some extra space for its mount, you’ll need to be proactive and leave a few additional inches around the unit. This extra space will make it easy for you to replace the filter without too much hassle in the future.

§  Replacement Costs

Since the inline water filter will be working 24/7 to provide you and your family with clean, filtered water, you’ll obviously have to replace it after every few months.

It’s important that you consider the replacement costs before buying one and find out how often the manufacturer says you’ll have to replace the filters. Based on that, calculate the estimated annual replacement costs if you’re following a budget.

It’s noteworthy that some inline water filters have a low upfront cost that may be tempting but in the long run, they offer very expensive filters.

Oftentimes, it is better to invest in a high-quality filter that may be a little expensive but may have lower replacement costs. This will work out best for your budget in the long haul.

The DIY Guide: How to Install Inline Water Filters at Home

Installing an inline water filter is an easy task that you can do at home without needing assistance from a plumber or a professional.

All the products reviewed on the list allow quick, DIY installation. All you need is the right tools, some basic plumbing skills, and an installation kit.

What You’ll Need

Here’s a list of things you’ll need to install an inline water filter at home.

  • Inline water system
  • Screwdriver
  • Carbon filter
  • Pipe cutter
  • Screws
  • Installation kit

The Installation Steps

Follow these steps to make sure the installation process goes smoothly.

Step 1: Choose an Ideal Location

First and foremost, select the best location for your inline water filter. Typically, homeowners set this water system on the pipe of cold water supply under the sink in the kitchen.

However, with the aforementioned products, you may use the inline water filter for the icemaker, refrigerator, and other appliances as well.

Step 2: Get Rid of the Pipes

The second step is to cut the cold water supply of your home. For this, the cold water pipe under the kitchen sink needs to be removed. It is usually up to three inches long.

Use the pipe cutter to remove the part between the tap and water supply valve so that a gap is created.

Step 3: Set Up the Connections

The inline water filter is supposed to go in the gap you’ve created. But first, you need to set up the connections.

To begin with, connect the inlet of the filter to the water connection lines. You may spot the inlet on the filter by a marked symbol like ‘In’. The outlet should then be connected to the main kitchen pipes. It may also be marked for identification.

If you think this is confusing, you can simply follow the instructions that come with the filter’s mounting kit – and it’ll make it easy for you to set up the connections.

Step 4: Place the Filter

Next, it’s time to drill holes on the compartment walls where the filter is supposed to be placed.

You’ll be provided with a bracket to help you place the filter. You’ll then have to use a screwdriver to fix the screws for attaching the water filter on the wall.

While you’re on it, make sure that you leave enough space near the screws so that filter replacement won’t be a problem in the future. Congrats – your filter has been installed!

Test 5: Test and Enjoy!

Once the installation is complete, don’t forget to test it by running the water. This will help you check for any leaks. If you notice any, fix it then and there.

That being said, to get the most of inline water filters, you should consider buying one that is certified and has a good water flow rate.

With your inline water filter in place, enjoy the taste of pure water and stay healthy!

The Final Verdict on Inline Water Filters

In a nutshell, inline water filters are the ultimate filtration systems to fight the common tap water contamination issues. They allow easy and quick installation, work great in low-pressure environments, save space in your kitchen, and have amazing contaminant-removing capabilities – what else could you want?

If you’re convinced, you need not look any further than our list of the best inline water filters of 2019!

It’s time to protect yours and your family members’ health by making clean, pure water accessible for everyone!

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