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Best Inline Water Filters

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Generally the Inline water filters are used directly on the water line or the home appliance in order to save space. Sometimes they’re installed to work together filtrating water with the reverse osmosis system. They’re usually used in the final stage of the RO system. An Inline water filter works in RO systems as the final polishing filter. These filters are also sometimes called inline post filters. These water filters are also sometimes used for filtering water for certain home appliances. It can be used on ice makers, coffee makers, and other small appliances that have low flow rate.

There’re various different models available to choose from. To help you choose the best inline water filter for your needs we have selected the best products and compiled this inline water filter reviews. The filters included in this list are based on their quality, reviews, rating, price and uses.

Best 5 Inline Water Filters Reviews


Watts 5YR Premier Filter Inline Ice Maker Water Filter

The Top Pick

Culligan FM-15A Faucet-Mount Advanced Water Filter, 200 Gallon, White

Watts 5YR Premier filter has a variety of uses. This model is perfect for ice makers, RVs, coffee makers, water coolers, refrigerators, and even water fountains. So if you are looking for the best refrigerator water filter or washing machine filter, then this model would be one of our top recommendations.

It’s a high capacity water filter that can filter up to 20,000 gallons of water, which should last about 5 years. It provides safety and quality and being NSF tested and certified ensures that. It’s certified for reducing chlorine, its taste and odor. Additionally, it reduces scale buildup. Filtering the water, it improves its taste and clarity. It features a special filtration media that allows provides by the system bacteriostatic properties, which extends filtration life.

The installation as well as the maintenance is very simple. The filter comes with connection adaptors, using which you can easily add the filter to your current plumbing, installing it directly in line with it.

It’s one of the best selling filters of this category on Amazon. It has received many high ratings as well as good reviews.


Culligan IC-EZ-1 EZ-Change Icemaker and Refrigerator Drinking Water Filter

The Runner Up

Culligan IC 1 EZ-Change Basic Inline Icemaker and Refrigerator Filtration System, 3,000 Gallon

Culligan EZ-Change filter is ideal for refrigerator water dispensers and ice makers providing you with a clean and fresh water supply. The inline water purifier is designed for connection to water and ice supplies.

The filter removes from water bad taste and odor, also reducing chlorine taste and odor, as well as other particulates to prevent them from penetrating the water inside the refrigerator.

The installation is easy and it easily fits into the refrigerator’s drinking system, so you and your family will have clean ice and fresh water at your fingertips. With quick-connect fittings keep the filter in place until it needs replacement, which would be after filtering up to 3,000 gallons of water. The lightweight filter features a twist-on and twist-off mechanism that makes the replacement of filters easy and fast.


GE GXRLQ SmartWater Inline Water System

The Value Pick

GE FQK1K Exterior Refrigerator/Icemaker Filtration System

GE GXRLQ filter is ideal for brand of refrigerator and the installation is inline behind your refrigerator. Just like the previous filter, this one will improve the taste and odor of the water as well as ice that is going through your fridge.

The GE filter has a compact design, so even if you only a tight space available, it should fit in easily.

The process of installation is also very easy and this product comes with everything you need to have the filter set up. This system is also equipped with Twist and Lock mechanism, so when you need to change the water filter you just unscrew the old one and screw back on a new filter.


Whirlpool 4378411 RB Inline Refrigerator and Water Filter

The Editor's Choice

4378411RB Whirlpool Appliance Universal Ice/Water Filter, Inline (1)

Whirlpool 4378411 RB Inline Refrigerator and Water Filter is also suitable for any major brand refrigerator that has filter access located in the back of the fridge. The filter is designed to produce clean and fresh ice and water by removing bad tastes and odors, dirt, chlorine, rust, and lime scale buildup. It also reduces sediment as well as other particles in the water to 5 microns.

The installation is quick and easy with the push-on connectors that also keep the unit in place. About every 6 months the water filter will need replacement.


Filtrete Under Sink Advanced Water Filtration System

The Runner Up

Filtrete Advanced Under Sink Quick Change Water Filtration System 3US-PS01

Filtrete filter is designed to fit under the sink so you can enjoy clean drinking water right from the tap. The filtration reduces chlorine taste, sediment and odor. The Filtrete filter is developed by 3M engineers and features a filter media that’s electrostatically charged and acts like tiny magnets. This attracts and captures different microscopic particles as they pass through the filter.

Installing this unit in line will require a screw driver and an adjustable wrench. To use this filter you don’t need to install an extra filter. You install it directly to your existing faucet. You need to connect it under the sink to the supply line of cold water.

How to Choose - Best Inline Water Filters

It can be difficult to find a good solution for water filtration that is convenient and inexpensive. The inline water filter is an easy to use, low cost alternative to more expensive water filtration systems. It’s more convenient than pitcher systems and less expensive than system designed for the entire house.

Advantages of Inline Water Filters

One advantage inline water filters have over pitcher filters is that you do not need to refill after each use and you don’t need to find a place for it in your refrigerator. Pitcher systems can take up valuable space on the top shelf – space that should be used for large milk and juice containers. In fact, refrigerator styles that have built-in water dispensers and ice makers, but don’t have their own filter systems, are great applications for inline water filters.

Inline Water Filter Installation

These filters simply get installed on the water line that feeds the refrigerator. It does not require a plumber and can be installed with simple tools. You just need to cut the existing water line, which is typically made from a water-grade plastic. You then attach the fittings that come with the inline water filter kit to each end of the freshly cut water line. There will likely be a bit of water spillage during this initial installation when you cut the water line, so be prepared with a small basin and perhaps some towels for drying the floor.

Benefits of Inline Water Filters

The better inline water filter kits will have fittings that keep water from spilling out of the water line when the filter is not attached, so you will not have to worry about water spillage when you replace the filter. Once the fittings are attached to the water lines it should be just a simple matter of attaching the filter to the fittings without use of tools. Modern kits use quick-disconnect fittings to make filter replacement clean, convenient and simple.

This type of filter is really ideal in situations where you do not want to replace the refrigerator to one with built in filtration. That’s typically cases where you’re renting an apartment or other home.

Once you have this type of filter installed you can begin enjoying water from which any contaminants such as chlorine, lead, cysts and particulates have been removed. You will probably also notice that any bad tastes have also been removed. So not only do you get water that is safer to drink, it will taste better too.

These types of filters will save you money over time as well. Since you can just refill from your refrigerator with clean, cold water you will not need to buy bottle water from the store or worry about maintaining a water cooler. Since fewer bottle need to purchased, used and thrown away or recycled it also helps the environment.

You can even get inline water filters built into water bottles. So if you are gone from the house for most of the day and cannot refill, a water bottle with a built-in filter is a good choice.

So you’re not only doing something good for yourself by getting an inline water filter you’re doing something good for the planet.

The Bottom Line

Inline water filters can be handy and useful, and another benefit is that they mostly available at affordable prices. We hope that in our Inline water filter reviews you have found the right information for your search. To provide clean softened water also for your shower, read our review here for the best products. You can also install a unit for clean and soft water in the whole house

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