10 Best Inline Water Filters – Stop Worrying About the Purity of Your Water!

  • Last updatedLast updated: May 22, 2020
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With an inline water filter, you no longer have to worry about contaminants in your water as long as installation is done up to standards. Ideally, this would be at the water supply’s point of entry, but there are also other applications that include sinks, refrigerators, and ice makers.

Our team reviewed a myriad of these products totaling 40 of the best inline water filters. We then shortlisted the items to ten products, of which the PureWater PWF-IFK came out as the editor’s choice. This may be attributed to the certification by authority bodies, quick connect fittings, and the lifetime warranty. By their selection, the other nine products in the list are as well, high-quality options.

Top 10 Inline Water Filters Review 2020

Our team has thus spent a great deal of time reviewing said products with information mainly from the manufacturer websites. There is also the addition of information from vendor sites as well, including customer reviews. Installation, flow rate, filter life and effectiveness are some of the indicators of quality on the water filter’s part; hence they all came into consideration while coming up with the table below. Dimensions and other features also came into play as they may determine the suitability of devices to certain installation situations. Following the table, there is a section for individual product reviews and, after that, a buying guide. With information as provided by the write-up below, difficulty in selecting the best inline water filter for your needs should no longer be cause for worry.

Editor’s Choice

An NSF/ANSI certified inline water filter with quick-connect components, a capacity of 1,500 gallons and a lifetime warranty

Read Our Review
9.8
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Premium Pick

An NSF/ANSI certified water filter that comes with quick-connect fittings, and features a flow rate of 0.5 GPM and a capacity of 500 gallons

Read Our Review
9.7
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best for Refrigerator

An NSF/ANSI certified water filter that features advanced selective filtration technology, a flow rate of 3 GPM and a capacity of 10,000 gallons

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9.7
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best Under Sink Filter

An undersink water filter that features 3M water filtration system, a flow rate of 1.5 GPM and a capacity of 2,000 gallons

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9.5
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best Universal Use

A package of two water filters that feature an activated carbon block with KDF,  a flow rate of 2.5 GPM and a capacity of 500 gallons

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9.4
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best Whole House Filter

An NSF/ANSI certified whole house water filter that features a built-in shut-off valve, a flow rate of 0.5 GPM and a capacity of 500 gallons

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9.3
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best Value

A whole house filter that comes with Universal 500 Series poly block cartridge, and features a flow rate of 5 GPM and a capacity of 15,000 gallons

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9.2
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best RV Water Filter

An NSF tested & certified bacteriostatic filter with a flow rate of 0.5 GPM and a capacity of 20,000 gallons

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9.0
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best Multi-set Filter

A pack of four NSF certified filters that come with ¼-inch quick-connect compression fittings, and features a flow rate of 0.5 GPM and a capacity of 1,500 gallons

Read Our Review
8.8
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
Best For Ice Makers

A pack of six inline water filters that come with ¼-inch quick-connect compression fittings, and features a capacity of 2,500 gallons

Read Our Review
8.6
CookScoreTM
?
CookScore is a ranking system developed by our team of experts. It aggregates all the scores given to a product in various aspects including the individual product’s features evaluation given by each experts independently, its customers’ feedback rank, and sales rank.
1.

PureWater PWF-IFKEditor’s Choice

Features
  • Installation: ice maker, refrigerator, beverage equipment, under the sink, under the counter systems, etc.
  • Removes: chlorine, unpleasant taste and odor
  • Filter life: 1,500 gal., 1 year
  • Flow rate: n/a
  • Dimensions: 10.6 x 6.3 x 3.8 in.

Other features: NSF/ANSI certified, includes New PureWater filter (with quick-connect fittings), lifetime warranty

As it stands, the PureWater PWF-IFK is one of the cheaper options on offer and hence will be more accessible to a lot of people. However, this is only a single unit, and you might have to buy several to cover all house installations. Also, due to this, it would be bothersome if the installation process was long and complicated. As such, the manufacturer has realized this and included quick-connect components that make installation a breeze.

You would also need to know the other pieces of home equipment that the device is compatible with. Among them, you will see a refrigerator, an icemaker, and other beverage makers that you may own. You may as well choose to install this inline water filter under the kitchen sink.

Once you are done with the installation, there are the results you expect from these devices. The taste of chlorine will be less apparent. This, of course, makes drinking water straight out of the tap easier. An added benefit is that chlorine odor is also significantly reduced.

Of course, after purchase, the device will come with installed cartridge filters that last about a year. You can as well find replacements on the same on Amazon. Also, there is the added factor of a lifetime warranty with the gadget that makes this even more of an attractive purchase.

In addition to the above pros, you will find that the tool has been tested and certified to fit specific international standards.

Pros
  • Compatible with a lot of home devices
  • NSF/ANSI certified
  • Lifetime warranty
  • Relatively long filter life
  • Fairly easy installation
Cons
  • Some users have mentioned that the quick connect fittings are made of plastic while they would prefer more durable metal ones
2.

Culligan IC-EZ-4 EZPremium Pick

Features
  • Installation: refrigerator, icemaker
  • Removes: particulates class I, chloride, cyst and chloroform, MTBE and Mercury, lead, turbidity, bad taste and odor from water
  • Filter life: 500 gal., six months
  • Flow rate: 0.5 GPM
  • Dimensions: 4 x 5 x 15 in.

Other features: cartridge with quick connect fittings, NSF certified; fits replacement cartridges, RC-EZ-1, RC-EZ-3, and RC-EZ-4

The Culligan IC-EZ-4 EZ features as our premium pick of the day. As such, you may have to spend more money with this tool than you would need with the editor’s choice, as well as some of the other options to feature below. With regards to installation, you have two main options once you make this your intended purchase. You can either put this on the water supply to your refrigerator or icemaker. You will likely have to buy two or more of these units; hence you should factor that into your water filter budget as well.

Once you have this installed, there are some contaminants in your water supply that this tool is adept at eliminating. They include chlorine, chloroform, MTBE, and mercury. As well, turbidity, and bad taste brought about by pollutants and particles, will be a thing of the past.

Just like its predecessor, the PureWater PWF-IFK, this tool’s filter cartridges are also readily available in the market. This makes sense since individual filters are only expected to work for up to six months. You should make it a point to check the cartridge change reminder sticker that comes with the purchase every so often. This way, you are right on the money when it comes time to buying and replacing the old cartridges with new ones.

While this purchase will come with the RC-EZ-4 filter, you have the option to interchange it with the RC-EZ-1, and RC-EZ-3 filters as well.

Pros
  • Easy to change filter cartridges
  • Effective against a myriad of contaminants
  • Certified
  • Several available replacement filter cartridges
Cons
  • At only six months cartridge filter life is a bit short
  • Flow rate is not impressive
3.

Woder WD-10KBest for Refrigerator

Features
  • Installation: ice makers, refrigerators, etc.
  • Removes: lead, heavy metals, chlorine, mercury, PFCs, TMHs, VOCs, glyphosate, chromium 6, trihalomethanes, detergent, turbidity, unpleasant odors, and tastes
  • Filter life: 10,000 gal, three years
  • Flow rate: 3 GPM
  • Dimensions: 12.2 x 2.8 x 2.8 in.

Other features: JG-1/4” connections, NSF/ANSI certified,  advanced selective filtration technology

You can as well choose to purchase and use the Woder WD-10K filter system for a little less than $50. The amount of value you get from spending that amount of money is tremendous. Flow rate allowed by the device, for example, is something to write home about. This tool allows for 3 GPM while most of its counterparts on the list feature 2.5 GPM or less.

Once you have installed the tool, there are several things you should expect to no longer be present in your water. Heavy metals including lead and mercury, are top on that list. Since chlorine has already done its job in purifying the water, it is no longer necessary, and hence that is eliminated as well. Other contaminants not to expect include VOCs, PFCs, detergents in addition to bad taste and odor. This is made feasible by the advanced filtration system included in the device.

Filter life is as well impressive as compared to other options. As such, you will only need to buy filters every three years. This is equivalent to a capacity of 10,000 gal. A downside to this is that you are likely to forget unless you note down this information and set reminders in advance. Nevertheless, this tool is NSF/ANSI certified and compatible with ice makers and refrigerators.

Pros
  • Impressive filter life
  • NSF/ANSI certified
  • Effective against heavy metal contaminants
  • Impressive flow rate
Cons
  • The device does not work as well with well water
4.

Filtrete 3US-PS01Best Under Sink Filter

Features
  • Installation: under sink
  • Removes: microbial cysts, chlorine taste & odor, sand, soil, silt, rust, and sediment
  • Filter life: 2,000 gal., six months
  • Flow rate: 1,5 GPM
  • Dimensions: 4 x 6.8 x 14 in.

Other features: 3M Water Filtration System, NSF certified Standard 53 and 42, 25-125 PSI operating pressure, 40- 100 degrees Fahrenheit operating temperature, 1-year limited warranty

The Filtrete 3US-PS01 is yet another impressive tool when it comes to flow rate. It offers a maximum of 5 GPM, which is more than is required for both your kitchen and bathroom faucets. However, the ideal position for you to place this device is under the sink. As you would expect from a tool of this caliber, it comes NSF certified; hence it has been tested by authority groups in food safety.

Warranty terms are a bit limited as compared to the PureWater PWF-IFK since this device will only allow up to 1-year coverage while the editor’s choice covers the initial buyer for their lifetime. If you endeavor to take care of the device, it should last even longer without losing functionality. Just like most counterparts thus far, this tool will need a change in filter cartridges after six months. Before then, the filters will eliminate everything from microbial cysts, sand, soil, and sediment to chlorine odor. As such, the device is guaranteed to carry out its mandate while it is in tip-top condition.

Also, this tool is versatile since it can work in the temperature range between 40 to 100 degrees Fahrenheit. Add this to the fact that you can install this device with the right knowhow in half an hour, and you will understand why it is a popular purchase.

Pros
  • Impressive 5 GPM flow rate
  • Wide range of operating temperature
  • Certified
  • 1-year warranty
Cons
  • 6-month filter life is a bit low
5.

Camco 40043 TastePUREBest Universal Use

Features
  • Installation: universal
  • Removes: aluminum, bacteria, bad taste, cadmium, chlorine, fungus, heavy metal, hydrogen sulfide, iron, lead, mercury, mold, odor, turbidity (cloudiness), and sediment.
  • Filter life: 500 gal., 3-4 months
  • Flow rate: 2.5 GPM
  • Dimensions: 22.2 x 13.8 x 9 in.

Other features: package of 2, flexible hose protector, activated carbon block with KDF

If you prefer devices that come as a multi-package, the Camco 40043 TastePURE is for you. However, this delivery is limited to two devices hence you may still need to buy it in multiples if the goal is to cover all faucets in the house.

The 2.5 GPM flow rate for these devices is impressive as well. What seems to fall short of the mark is the filter life of between three to four months. However, this may only be in comparison to other options on the list. Nevertheless, some people prefer it this way since they are less likely to forget to change filters.

The carbon block, in the filter, is one of the critical elements useful in eliminating hydrogen sulfide, heavy metals, mold odor, turbidity, sediment, bacteria, and chlorine. Once all these contaminants are removed from your water, you are less likely to experience a bad taste while you drink it. Also, the devices come with additional accessories in the form of hose protectors.

As it stands, not many people have used the device. Consequently, it may be difficult to pinpoint the negatives of the device unless you purchase, own, and use one.

Pros
  • Universal installation
  • Effective against metals, solids, and chlorine
  • Comes with hose protectors
Cons
  • Filter cartridges only last 3-4 months which can result in higher costs in the long run
6.

Culligan WTR Filter HF-360ABest Whole House Filter

Features
  • Installation: whole house
  • Removes: sediment, rust, scale, dirt, coarse sand, sand, fine sand, extra fine sand, and silt
  • Filter life: n/a
  • Flow rate: n/a
  • Dimensions: 6 x 6 x 14 in.

Other features: built-in shut-off valve, clear housing unit, 3/4″ inlet/outlet, NSF/ANSI certified, 5-year warranty

The Culligan WTR Filter HF-360A is yet another whole house inline filter that you can own for about $50. In design, you can pick out the similarities between this product and the Dupont WFPF13003B below. An example is seen where the ¾ in. inlets and outlets are the same for both devices. However, differences are bound to present themselves as well.

To the Culligan WTR Filter HF-360A device’s benefit, it has clear housing, and this will allow the user to monitor how the filter cartridge is being used. Once it starts to look like it’s full of contaminants, you should change it. This is a purely subjective method of checking whether you need to replace the filter or not and as such different people can change the filters at different times. This is the reason why the manufacturer does not bother to set a time limit.

Similar to some of its predecessors on the list, this device is effective against most solids inclusive of sand, silt, scale, rust, and sediment. This will ensure purity in the water you drink and makes most of the faucets in your house safe. The plumbing in your home is also likely to last longer.

Another component that can be useful is the built-in shut-off valve especially when changing filters. It allows the user not to have to remove the whole device during the filter changing process, and this elevates the tool’s standing.

Pros
  • Whole-house filtration
  • Certified
  • Shut-off valve to allow easier changing of filters
  • 5-year warranty
  • Clear housing to check if you need to clean the filter
Cons
  • There are no guidelines on how long filter cartridges will be effective hence each user will have to make subjective assessments on when to change them
7.

Dupont WFPF13003BBest Value

Features
  • Installation: whole house
  • Removes: bad taste and odor, chlorine, rust and corrosion, sediment, silt
  • Filter life: 15,000 gal., three months
  • Flow rate: 5 GPM
  • Dimensions: 4 5/8 x 4 5/8 x 12 5/8 in.

Other features: Universal 500 Series Poly Block Cartridge, 10 micron, 3/4 in. inlets and outlets, 3-Year Limited Warranty, whole-house application

If you are looking for a single whole house inline water filter to incorporate into your living space, the Dupont WFPF13003B may be the tool for you. It comes as a surprise that this tool is one of the cheaper ones on the list, given its added functionality and benefits. Nevertheless, this should work to your advantage allowing most people to access crisp, clean water.

You would expect such a device to hold its own when it comes to flow rate. In this regard, the tool performs on par with the best of them at 5 GPM. However, this may take its toll on the longevity of the filter cartridges since each one of these will run for three months before needing to be replaced.

Once you take out the filter, there are all sorts of materials and products you expect to be trapped in there. The most visible elements will be silt, sediment, rust, and corrosion. As such, if you are prone to noticing bad tastes and odors in your water, installing this tool will make these sensations a thing of the past.

Also, should the device get damaged, you are assured of warranty coverage for at least three years from the day of delivery.

Pros
  • Whole house compatible
  • 3-year warranty
  • High 5 GPM flow rate
Cons
  • Three months of filter life means you have to buy cartridges and replace them more often. This is both tiresome and expensive
8.

Watts 5YR PremierBest RV Water Filter

Features
  • Installation: refrigerators, ice-makers, RV campers, boats water fountains, under the sink, etc.
  • Removes: chlorine taste & odor
  • Filter life: 20,000 gal., 5 years
  • Flow rate: 0.5 GPM
  • Dimensions: 10 x 2.5 x 2.5 in.

Other features: bacteriostatic, NSF tested & certified

The Watts 5YR Premier is one of the more economic options not just because it’s inexpensive to purchase but also because filter life is more extended than with other options. You get to use compatible filter cartridges for five years before you have to replace them. This is the equivalent of 20,000 gal. of water.

This inline water filter for RVs is, however not all that impressive when it comes to flow rate, which stands at 0.5 GPM. Nevertheless, there are several installation options to choose from. Refrigerators and ice makers would be top of that list. This is in addition to boats and water fountains. If there are any bacterial elements in the water, the device both eliminates and stops them from reproducing, ensuring a cleaner experience.

As well once you receive this product, you should notice the NSF logo boldly displayed on the body. This should assure you that the product is effective in removing impurities from your drinking water.

Pros
  • 5-year filter life
  • Compatible with RV campers and boats
  • Bacteriostatic
  • NSF certified
Cons
  • Flow rate is low at only 0.5 GPM
9.

Omnipure K2533JJBest Multi-set Filter

Features
  • Installation: ice makers, refrigerators, beverage equipment, etc.
  • Removes: taste, odor, chlorine taste, and odor
  • Filter life: 1,500 gal. One year
  • Flow rate: 0.5 GPM,
  • Dimensions: 2 x 10 in.

Other features: a pack of 4, 1/4 inch quick-connect compression fittings, granulated activated carbon media, NSF certified

Another multi-pack presents itself in the form of the Omnipure K2533JJ. While the pack mentioned here comes with four devices, you can choose to add or subtract from this number. Naturally, the former will come with higher costs while the latter has the opposite effect. As to the ideal installation scenario, you may attach one of these to an ice maker, refrigerator, or another piece of beverage equipment in the house or office.

The filter life can be quantified at 1,500 gallons. Nevertheless, different taps and faucets will reach this requirement at different times. However, you are advised to change filters yearly without fail. This tool, as well, is one of many to receive NSF certification. The certification serves to let you know that this tool is of higher mettle than some of its counterparts in the market.

Flow rate is limited to 0.5 GPM. As such, you have to be careful to install the tool where high water pressure is not a requirement. Quick-connect fittings as well make this tool a joy to install even for some DIYers.

Pros
  • Comes in a four-pack
  • Compatible with ice makers, refrigerators and beverage equipment
Cons
  • Doesn’t come with instructions on installation
  • compression fittings may not be the best quality
10.

LASCO 37-1821Best For Ice Makers

Features
  • Installation: ice maker
  • Removes: unpleasant taste and odor
  • Filter life: 2,500 gal., six months
  • Flow rate: n/a
  • Dimensions: 2 x 10 in.

Other features: a pack of 6, 1/4-Inch compression connection fittings

This tool is mostly compatible with ice makers. As such, installation options may be limited per household. Nevertheless, you have the option of buying this in a six-pack or even a 36 pack if you feel the need to. During the time that you use this device, bad odor and taste will not feature in your ice cubes. However, you have a six month limit for changing the filters. For the cleanest experience, you should make it a point to change filters even sooner.

Also, these tools come with ¼ inch compression connection fittings. Some people, however, prefer to join the pipes directly with the devices while excluding the connection fittings from the setup. This is also one of the products on the list with an NSF certification.

Pros
  • Comes in a pack of six
  • Easy to install
Cons
  • Is only compatible with ice makers
  • Six months of filter life is relatively low

Buying Guide

Once you realize the water in your house doesn’t taste or smell right, the only thing to do is get an inline hose water filter. In the long run, most of these devices will help you drink cleaner, clearer, and better-tasting water. However, as per your needs, they may vary in effectiveness. As such, you need to set a bar for yourself on the minimum you expect from these pieces of equipment. This will help you choose the final product. The buying guide below should be able to help you set that bar.

Why buy an inline water filter

10 Best Inline Water Filters - Stop Worrying About the Purity of Your Water!

When water is contaminated, it may end up doing human beings more harm than good in addition to being unpleasant when consumed. Inline water filters, when purchased and installed, will eliminate odors, tastes and remove most of the mentioned contaminants. This will have the effect of improving your water consumption experience. It is also healthier to have a water filter working.

Features to consider when choosing an inline water filter

You would expect different models to have different features, and you would be right. Consequently, indiscriminately buying products and hoping they will work for you would be a mistake. The smart course of action would be to ensure a device has all the essential features before making the purchase. Each of the features common to inline water filters has been outlined below so you can make your choices wisely.

Where it is going to be installed

As you can see in the product features listed for the devices above, installation areas will vary. You have products like the LASCO 37-1821 that work best with ice makers. Other products will work with a variety of installations such as sinks, and refrigerators while some go the extra step to even work on boats and RVs.

Another option is to find whole house devices that will require a high flow rate since they cater to the entire house. They will as well have to be installed at the water supply’s point of entry into the home.
As such, you need to evaluate your needs beforehand and quantify whether you want to use the device alongside your refrigerator, ice maker, sink, or elsewhere. You will  make a wiser purchase choice once you have done this.

Effectiveness

Ideally, you would find a product that is capable of eliminating most types of contaminants. Such functionality is likely to cost more, but it’s often worth it. As a result, you will find the water quality in your home much better than you previously found it. Of course, there are health benefits to this as well.

Filter life

Filter life varies from product to product. Time frames vary from 3 months as exhibited by the Dupont WFPF1300B to 5 years, as shown by the Watts 5YR Premier with many other options in-between. Of course, a filter that lasts longer is a cheaper option overall since you won’t have to spend much money on filter cartridge replacements. Contrastingly, if you leave the filter cartridges in for five years, you are likely to forget all about them and skip the replacement date. Shorter filter life is easier to remember. Nevertheless, this is entirely dependent on the person using the device.

Flow rate

Flow rate is also highly variable from device to device. However, as a rule of thumb, whole-house devices should be able to handle 5 GPM or more. This will ensure that faucets in the house retain acceptable levels of pressure when it comes to water output. For devices that only work with refrigerators or ice makers, you can probably get by with even 0.5 GPM, as shown by the Omnipure K2533JJ.

Dimensions

For a device that you are going to install near your ice maker or refrigerator, you want it as inconspicuous as possible hence why you should pay attention to the dimensions. Whole house inline water filters can get away with being bigger since they have a more significant workload and are likely to be installed where people will not notice them.

Weight

10 Best Inline Water Filters - Stop Worrying About the Purity of Your Water!

You also don’t want bulky devices that will put a strain on your plumbing, as this may bring about unforeseen issues. However, weight is likely to be directly proportionate to the dimensions. Consequently, you should contemplate the measurements of the device alongside the effect they have on its weight.

Filter replacement

Some of the filters on offer are easy to replace, while others require you to take apart the whole device before changing them. Naturally, this is time-consuming and may lead to wastage of water. The Culligan WTR Filter HF-360A is most impressive in this regard since you don’t have to remove it while replacing the filter. It also comes with a shutoff valve so you can do so without wasting water.

How easy it is to install it

Most inline water filters are easy to install, whether you are a novice or veteran DIYer. It should be a process that takes less than 30 minutes. Nevertheless, if you know nothing about plumbing, you can decide to get a professional to do it for you. Also, for whole-house inline water filters, there is less leeway for mistakes, so if you are unsure of yourself, get a pro to do it. Installation instructions may also come in handy.

Other features

There may be some extra features that come with your purchase, so take care to note them as well. Among them, you find examples such as the shut-off valve mentioned above as well as wide ranges of operating temperatures. The latter ensures that no matter the water temperature and heat around the room and house, your water will still come out pristine.

FAQ

Most filters in the market have a three-stage filtration system that helps clean your water from impurities. The first stage is designed to take out most large size impurities from water. This is where rust, sand, soil, silt, and other larger-sized particles are taken out of the equation.

If you look through some of the options reviewed above, you will see a mention of carbon, as seen in the Camco 40043 TastePURE. Some may argue this is the most essential part of the filter. This is the second stage of filtration and serves to absorb most of the impurities left by the first filter stage.

A third stage is also incorporated, and while designed to take out some of the microparticles left, it rarely gets to do much work since the first two have already done most of the job. Some of the devices on offer will stop allowing water to pass through when the filter is no longer usable. This may serve as a physical reminder to get a new filter cartridge as soon as possible.

This is relative and is dependent on the particular inline water filter in question. An example is seen where the Dupont WFPF13003B is concerned. The device is a whole house inline water filter and will thus process large amounts of water in a relatively short period. This is also in line with the 5 GPM flow rate allowed by the device. For this reason, you can understand why you need to change the filter every three months.

Contrast this with products that have a low flow rate. It is very likely that for the latter, filters will last a significantly longer time. However, other factors affect the longevity of the filter as well. Nevertheless, most manufacturers will provide a guideline as to how long you should wait before changing filters. This may range from three months and extend up to five years, as we have indicated in the reviews above.

NSF stands for National Sanitation Foundation. This is a body that endeavors to create standards for food safety and sanitation. Since water is consumable there is a need for it also to be safe for ingestion. The NSF certification, therefore, should serve to give you assurances that water passed through certain inline water filters is safe for consumption.

Our Verdict

We stand by our list even in theoretical purchase situations. The PureWater PWF-IFK is a great first pick since it is compatible with most household fittings. It is as well easy to install and is the only product on the list to feature a lifetime warranty. The Woder WD-10K is also exceptional in its own right, given its effectiveness in eliminating contaminants. As we mentioned before, the more contaminants that the product could remove from your water, the better.

You can as well choose to buy the Culligan IC-EZ-4 EZ. Among the positives to expect from this purchase is the inclusion of interchangeable filters. You can decide to go with the RC-EZ-1, RC-EZ-3, or the RC-EZ-4, and these products will likely give you good results in your filtration efforts. Similar to the Woder WD-10K, it also has an impressive array of elements and particles that it can remove from water. You can also not discount the fact that it is NSF certified. Add that to the 5-year warranty, and you have a tool of tremendous value.

Nevertheless, you likely have your own opinions on the matter. We suggest you also pick out three of your favorites from the above before you select the product to purchase from among them.

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