Faucetsreviewed is audience-supported. When you buy through links on this site, we may earn an affiliate commission that we use for site maintenance. Learn more

Water Purification Systems

The Best Faucet Water Filters, According to 70,000+ Customer Reviews

Wondering what’s the best way to filter tap water? Long ago, my kitchen and bathroom used to have unpleasant odors that never went away even after using reagents thoroughly. It didn’t take me much time to discover that hard water was the culprit with its characteristic odor.

So, I installed one of the best faucet water filters on the market at that time, which was NSF-certified and required very low maintenance and helped me get rid of the issue overnight.

It also saved me the trouble of buying reagents to wash the stains from hard water off my kitchen sink and bathroom floor.

If you’re facing the same problem, you can also get such a filtration system that can be set up within minutes and handle hundreds of gallons of hard water. They usually come with built-in, replaceable cartridges that help remove contaminants and improve water quality.

Our buying guide is here to help you get the best water filter for faucet as per your own requirements.

Best Faucet Water Filters Reviewed

01 PUR FM-9600 (Our Pick)

PUR FM-9600

This Mineralclear filtration accessory comes with new finishes and high-quality materials. This PUR FM-9600 provides a refreshing taste. It’s a reliable system for contaminant reduction. Also, it comes with single and multi-pack replacements.

MineralClear Technology: There’s a built-in carbon filter that removes 96% of mercury and 99% of trace minerals and leads respectively. As a premium quality choice, this filtration technology  allows you to enjoy the refreshing taste of soft water always. It’s the Mineralclear filter in this model that replaces the 3-Stage filtration process of older models.

Easy One-Click Installation: Its simple installation process makes it a great choice for those who are not so good with tools. It takes 1-click installation to replace or remove this accessory.

Ergonomically Enhanced: PUR FM-9600 is an improved version of PUR faucet water filters. As a high-end faucet mount filter, it comes with a 360-degree swivel that allows it to align well in sinks. Also, its horizontal space-saving design helps to create extra space around the sink. Its style and finish are impressive features that make the filter unique. Also, the filter comes with a rotating collar and lightweight of 1.2 pounds.

Electronic Reminder: There will be no excuse for homeowners with hectic lifestyles that tend to forget the replacement dates for their faucet filters. It comes with a built-in electronic filter-life indicator. This electronic chip helps to keep track of the filter’s replacement date.


  • Item Weight: 1.2 pounds
  • Color: White and Chrome
  • Indicator: Electronic
  • Brand: PUR


  • This model of filter comes with new finishes and materials.
  • It can handle filtration of 100 gallons of hard water
  • It comes with the MineralClear Technology that replaces regular 3-Stage filters.


  • The lifespan of the PUR FM-9600 filter is too short. At 100 gallons (maximum), it means you’ll need to replace its filters quicker when you live in areas where very hard water flows to your home.

Our Verdict

As an ultimate model infiltration, the PUR FM-9600 filter has a stylish construction and a built-in electronic filter-life indicator. You can enjoy great-tasting water when you install this fitting. It’s quick to install this 1-click horizontal design and enjoy this premium carbon filter.

This versatile faucet water filter is perfect for any kind of kitchen sink as well as bathroom sinks. Also, I’ll recommend this for homeowners with a tight kitchen sink space.

02 PUR FM-3700 (Also Great)

PUR FM-3700

We bring you a great product from our range of faucet mount filters. Its Chrome accent is appealing, and there’s a built-in LED filter status indicator to remind you of periodic maintenance. The PUR FM-3700 is compatible with modern faucets, but will fail to work with handheld or pull-out faucets. Let’s share other exciting features that make this product unique.

Electronic Filter Indicator: It comes with a built-in filter life indicator. With the electronic indicator, you’ll see the filter status and remember when the next replacement date is due. Also, the filter indicator assures you of enjoying cleaner filtered drinking water.

MAXION Filter Technology: As an advanced choice from PUR, the MAXION Filter Technology is an innovation that provides superior filtration process. This technology is designed to use activated carbon and ion exchange for trapping sediments and harsh chemicals that run through old water pipes. You will not need a water softener any more if you use this one.

3-Stage Filtration: The first stage of filtration traps sediments, while the second stage eliminates 99 percent of microbial cysts and lead. The performance at the 3rd stage ensures that the remaining contaminants (minerals) are filtered for a refreshing taste.

Versatility: Generally, PUR faucet filtration systems are versatile and can handle different contaminants. This device removes 96% of Mercury, 99% of Lead, and 92% of harsh chemicals in pesticides.


  • Item Weight: 1 pound
  • Color: Chrome
  • Indicator: Electronic
  • Brand: PUR


  • It gives 100 gallons (between 2 to 3 months) of clean, and potable water
  • It uses activated carbon and ion exchange to provide superior water filtration
  • It can remove 70 contaminants from unfiltered water


  • Its lifespan is too short for its value

Our Verdict

PUR FM3700 is with a unique MAXION filtration technology for homeowners who need to ensure that the water they drink is clean and safe. It’s easy to install and users can gain benefits from its ion exchange and built-in activated carbon filtration processes.

03 Culligan FM-15A

Culligan FM-15A

The simple design of the Culligan FM-15RA makes it align with standard faucets nicely while being affordable for all. However, it weighs more (14.9 ounces) than regular models. Also, it’s easy to install and fairly unobtrusive. Let’s discuss other features that make this a must-have for every household.

Higher Filtration Capacity: The FM-15RA can handle 200 gallons of unfiltered water. It might also last for over two months when the supply from your public utility isn’t densely contaminated. Apart from removing odor and bad taste from water, the filtration capacity reduces chlorine, lead, atrazine, cryptosporidium, lindane, giardia cysts, and turbidity.

Advanced Water Filtration: It ensures a high water quality with the use of its diverter valve stem. After installing this accessory, homeowners can switch from regular tap water to advanced quality filtered water with ease.

Versatility: High-end faucet mount filters have a range of useful features and the Culligan FM-15A model is no exception. It can handle water pressures from a range of  30 to 100 psi, and temperatures of 40 to 100 degrees Fahrenheit respectively.

No-Tool Installation: You don’t need simple tools to install this faucet filter and cartridge. It’s easy; simply unscrew the aerator of your faucet and attach the Culligan FM-15A’s adaptor.


  • Item Weight: 14.9 ounces
  • Color: White Finish
  • Indicator: None
  • Brand: Culligan


  • It comes with a filtration capacity of 200 gallons
  • It provides a water-flow rate of 0.5 GPM at 60 psi
  • It comes with a simple diverter tab that allows users to switch from premium water quality filtered to normal tap water quickly.


  • Its mount adaptor doesn’t attach to drop down faucets

Our Verdict

You get replacement filters with Culligan FM-15A for cleaner and purer drinking water. The installation process is also simple and easy. It would be an amazing device to stay healthy as the water you get out of it is far safer than tap water. Buyers owning standard nozzles for their sinks can make the best out of its Advanced Water Filtration System.

04 Engdenton Faucet Water Filter

Engdenton Faucet Water Filter

This Engdenton product is designed with a food-grade 304 stainless steel housing. It’s uncommon to see decent water purifiers with ultra-adsorptive constructions. This type of material is very durable because of cutting-edge technology. However, let’s discuss the features that make it one of the best water filters for faucet of our list.

Durability & High-Flow Rate: As a long-lasting choice with grade 304 stainless steel material, this Engdenton filter has a sturdy construction that makes it durable. With it’s special design, it provides water at a rate of 2L/min. This flow rate is higher than the filtration speeds of regular choices.

Tight Connection: Its adaptor ensures a tight connection to prevent leakage or sudden cracks. Also, it can withstand excessive water pressure that causes normal filters to burst.

The 360-degree Swivel: You can align your cup at any angle or tilt the filter like a water fountain. The filter’s special swivel design gives much ease of use. Also, its water-flow rate of 0.5GPM ensures your bottles and cups are filled quickly.

Activated Carbon Fiber: The Activated Carbon Fiber (ACF) media is a filtration technology that improves the taste of water. Additionally, ACF filtration systems give better-tasting cooking and remove sediments from water.


  • Item Weight: 1.65 pounds
  • Color: Stainless Steel
  • Indicator: None
  • Brand: Engdenton


  • It features a premium quality food-grade, 304 stainless steel housing material, and lifespan of 320 gallons (approximately 6 months)
  • It uses Activated Carbon Fiber (ACF) filtration systems
  • It has a speedy water flow rate of 0.5GPM of water at 60 psi


  • Its adaptor doesn’t fit drop down faucets

Our Verdict

Are you looking for faucet mount water filter that can resist sudden leakages? The Engdenton stainless steel filter has an ultra-adsorptive material that is tough. It can serve households for 6 months or handle about 320 gallons of unfiltered water.

05 Brita Tap Water Faucet Filtration System

Brita Tap Water Faucet Filtration System

This is another great choice that can handle 100 gallons of hard water. That’s an equivalent of  750 units of standard 16.9-ounce plastic water bottles. Also, its built-in filter life indicator makes the replacement of filters easy after using them for about four months. In fact, you can use this as an alternative to water filters and softeners.

Lead Reduction: It is able to take out approximately 99% of lead and chlorine from unfiltered water. You may not find all the contaminants in your water, but this accessory takes out 60 common contaminants like benzene and asbestos.

Adjustable Settings: It comes with a 3-spray option of filtration mode that allows you to use the ‘OFF’ and ‘ON’ filtering switch. These three 3-spray options include – filtered water, unfiltered spray, and unfiltered water.

Filter Life Reminder: To ensure you drink the cleanest water from your tap, Brita designed this model of faucet mount with an indicator. The filter change indicator provides the optimum performance by using green and red lights. When it’s time to replace the filter every four months, the one-click option makes it easy and convenient.

Easy Installation: The process of replacing or installing this water faucet filtration system is seamless. Simply choose adaptors and washers that fit your faucet’s aerator. Then, insert the cartridge into its housing and check to confirm the green light signal. After installing this device, allow it to run for about ten minutes before drinking clean water.


  • Item Weight: 8.2 ounces
  • Material: Plastic
  • Color: White
  • Indicator: Electric
  • Brand: Brita


  • The plastic housing is BPA-free and durable
  • It uses a 3-spray option of unfiltered water, filtered water, and unfiltered spray.
  • The filtration media can handle 100 gallons of unfiltered water


  • You cannot use it on spray style and pull out faucets

Our Verdict

The Brita on-tap faucet filtration system is a durable product that can serve for 4 months before any replacement. It ensures 99% elimination of harsh chemicals like lead, chlorine, and benzene from hard water. Also, you don’t need special plumbing tools or drilling to install this product.

Additionally, the package includes one unit of Brita on-tap faucet mount, dispenser and replacement filter accordingly. I’ll recommend this model of faucet mount for every homeowner.

06 PUR FM- 3333B

PUR FM-3333

The stylish, sleek white PUR FM-3333 Classic Faucet Mount comes with a replacement filter and four adaptor fittings for the faucet. With a speedy water flow rate, you will enjoy much filtration speed than regular options.

Built-in Indicator: Its filter-life indicator works seamlessly, and can be used for three months. When the indicator shows orange color, it’s a sign that the replacement of the filter is close. Also, the filter-life indicator helps you to keep track and maintain your filter.

Filtration Capacity: As one of the exclusive items with an efficient filtration system, the PUR FM-3333 model can handle 100 gallons of unfiltered water. It means you should expect a replacement after three months of enjoying the benefits of purified water.

Easy Installation: By using hand-tightening method to install and replace this device, there’s no need to use plumbing tools like an adjustable wrench. Also, this accessory is supported by an easy, one-click installation feature.

Improves Water Taste: Apart from enjoying filtered water from your tap, this Vertical Water Filtration Faucet Mount ensures improvement in the taste of your food. It also prevents stale odor from hard and alkaline water.


  • Item Weight: 1.1 lbs
  • Color: White
  • Indicator: Electronic
  • Brand: PUR


  • It uses a 2-Stage filtration process to produce soft water
  • This Vertical model uses the one-click installation process
  • It has a built-in indicator that tracks your filter life


  • It has a plastic faucet adaptor that tends to break when you tighten it with much force

Our Verdict

The LED filter-life indicator of the PUR FM-3333 is always reliable. After its installation, you must allow this filtration device to run for about ten minutes before drinking the water. It’s very easy to install because you don’t need special tools.

I’ll recommend this The Pur FM-3333 filtration system for low-budget buyers that want to drink clean water and stay healthy.

07 DuPont WFFM350XCH


As a premium water faucet mounts with chrome accent, this DuPont WFFM350XCH is a must have for every household. It’s style and finishes guarantee buyers of choosing a high-quality and durable filter. With an installation process that takes less than ten minutes, homeowners can use a pair of pliers to set up this accessory.

Digital Filter Life Display: The WFFM350XCH Deluxe Faucet Mount from DuPont is electrically metered. It’s easy-to-read electronic display calculates water volume in gallons that it has filtered. It helps to measure its life and prompts when there’s a need for replacement.

Ultra-performance Filtration: It’s not every filtration media that removes contaminants from hard water thoroughly. However, the ultra-filtration performance of this kitchen accessory improves your water clarity, and taste.

Versatile Filtration System: What makes water soft and potable is the absence of contaminants. This DuPont WFFM350XCH comes with a filter that removes cysts, mercury, lead, lindane, chlorine,  and sediment from hard water. Its versatility ensures zero activity of pathogens in drinking water and improves antimicrobial protection with a built-in cartridge.

Quick installation: You can install this fixture by using a pair of pliers in less than five minutes. This faucet mount package comes with two units of metal faucet adaptors, and washers respectively. Also, it is compatible with standard kitchen faucets.


  • Item Weight: 13.3 ounces
  • Material: Plastic
  • Color: Chrome
  • Indicator: Electronic
  • Brand: DuPont


  • It comes with an easy-to-read electronic display meter that calculates the total volume of filtered water in gallons
  • This DuPont model can handle 200 gallons of unfiltered water before the end of its lifespan
  • This filtration system has a built-in cartridge that offers antimicrobial protection


  • The DuPont water faucet mount comes with a plastic faucet adaptor that could break when you apply much force while screwing it.

Our Verdict

An advantage of having this model of DuPont WFFM350XCH Deluxe faucet mount is the availability of replacement filters. Also, the high-profile design of electronic display of this product makes it easy to read, and track your filter’s life. It works well with most of the standard faucets, but not with pull-down faucets.

08 Ecosoft Countertop Drinking Water Filter System

Ecosoft Countertop Drinking Water Filter System

As a reliable manufacturer of filtration systems, the Ecosoft Water Professionals company has designed an easy alternative to bottled water. This faucet mount comes with an extra filtration cartridge that has a lifespan of six months. Here are all the features that make this a must-buy.

Activated Coconut-based Carbon Technology: Its green casing contains an advanced carbon filter media that’s made from coconut husk. It’s a European-engineered technology that removes lead, rust, and chlorine from hard water. You’ll enjoy clean water with all vital minerals intact.

Six-Month Lifespan: Its cartridge can last for 6 months and handle a total volume of 1500 gallons. With its large filtration capacity, you can fill over 200 plastic water bottles before the cartridge packs up.

Easy Installation: Every DIY homeowner that’s enthusiastic about countertop filter system can handle the installation with ease. The package comes with two units of faucet adaptors, tubing, washers, 0-ring seals and a plastic wrench. The complete accessories ensure a quick, and leak-proof installation. So, no plumbing or drilling is required before you enjoy clean water.

Modern Design: This countertop filter is one of the best faucet water filters which has a high quality water filtration system. It not only removes harmful substances like chloramines from your water, but also improves your water clarity, and taste. More so, this product comes in a range of color options to fit your kitchen’s decoration.


  • Item Weight: 3.5 pounds
  • Material: Plastic
  • Color: Green
  • Indicator: None
  • Brand: Ecosoft


  • It’s made from BPA-free and food-grade plastic materials
  • Its filtration media uses activated coconut-based carbon technology
  • It can handle 1500 gallons of unfiltered water


  • It doesn’t have a filter life indicator that shows you when to use the replacement filter.

Our Verdict

You’ll find an extra cartridge that can last for at least 6 months. This replacement cartridge is 2.5 inches wide and 9.6 inches high. So, you’ll find a convenient space to use this accessory on your countertop. Additionally, this Ecosoft filter can sieve harmful chlorination by-products, and retain beneficial minerals in soft water.

I’ll recommend this to users that don’t need filtration systems with conventional coal carbon shells.

09 Brita COMINHKR063772

Brita COMINHKR063772

Brita COMINHKR063772 is easy to install that can be done within five minutes. It’s an excellent choice for the price that effectively removes bad taste and odor from unfiltered water.

Easy and No-Tool Installation: This Brita item doesn’t need tools to install it. Instead, its adaptor attaches to standard faucet aerators using hand-tightening methods.

Filter Change Reminder: You don’t have to worry about your busy schedules while tracking replacement dates for the filter. The filter change reminder feature makes it easy to replace your tap water filter with the 1-click filter replacement method. When this faucet water filter is at its optimum performance, it shows a green light, and red light when it’s due for replacement. Usually, this filter lasts for four months.

Water Conservation: This BPA-free system can handle 100 gallons of water filtration. The flow-rate helps you conserve filtered tap water. Additionally, it can fill a total of 750 standard 16-ounce bottles before the end of it’s lifespan.

The 3 Spray Options: Its filtration system uses a filtering switch that can be set at three spray options of unfiltered spray, filtered water, and unfiltered water. However, it supports standard faucets and can remove about 60 contaminants from water. Apart from bad taste and odor, our Brita filter can eliminate 99% lead and asbestos contaminants.


  • Item Weight: 0.84 pounds
  • Width: 2.38 inches
  • Color: White
  • Indicator: Electronic
  • Brand: Brita


  • It comes with three spray options of unfiltered spray, filtered water, and unfiltered water.
  • It can handle about 100 gallons of water
  • It reduces 99% of lead, chlorine, and 60 contaminants in hard water


  • It’s adaptor doesn’t fit spray style and pulls out faucets

Our Verdict

You can enjoy a water filtration system that fits standard faucets. With the 1-click filter replacement method, you don’t need tools to install this accessory. However, the optimum performance of this Brita filter ensures complete elimination of asbestos contaminants, lead, and chlorine. Get ready to enjoy the pure taste of filtered tap water after installing this device.

10 Instapure F2 ESSENTIALS


As a top rated faucet water filter, the Instapure F2 ESSENTIALS is also a reliable choice that you can try. It has a space-saving design and an efficient filter that purifies five times more water than regular pitcher filters.

Useful Filter Life: The maximum replacement date for this model is three months. It offers optimum performance that produces healthy, great-tasting soft water from your kitchen’s faucet. Also, this product can handle 200 gallons (757 liters) of unfiltered water before the due date (3 months) of filter replacement.

Thorough Filtration Process: The F2 ESSENTIALS  removes a range of contaminants from unfiltered water thoroughly. It takes out 99% of Lead, microbial cysts, and VOC respectively. Also, it eliminates over 97% of chlorine and makes your drinking water odorless.

Activated Coconut Carbon: It comes with the highest quality of coconut-based carbon filtration media. However, this silver-free carbon traps organic compounds and contaminants that can cause health hazards from hard water. With the activated carbon media, this filter can improve the taste of potable water.

Flow Rate: With a water flow rate of 0.75 GPM ( or 2.83 LPM), you can enjoy speedy filtration process than other regular faucet mounts. Also, this product has works well with water pressure that range between 30 to 100 psi ( or 207 to 689 kPa).


  • Item Weight: 11.2 ounces
  • Material: Plastic
  • Color: Chrome with Clear Cap
  • Indicator: None
  • Brand: Instapure


  • This original tap filter is compatible with standard faucet adaptors
  • It absorbs pollutants and organic compounds with the activated carbon media
  • The filtration media can handle 200 gallons of unfiltered water


  • It is not compatible with spray style and pull out faucets

Our Verdict

The Instapure F2 ESSENTIALS is efficient and versatile that can help you enjoy great-tasting water and bottle over 200 gallons of clean water within three months. Also, you don’t need to drill or use special plumbing tools before installing this product. It’s a must-have for home filtration system enthusiasts.

Best Water Filter Faucet for Kitchen Sink: A Buying Guide

Best Faucet Water Filters

When it comes to pure drinking water, there’s no option for making compromises. Regardless of your hectic lifestyle or busy schedule, you need to ensure that healthy water runs through your faucet at all times. Not only will it keep your kidneys and livers healthy, but it will also save you from certain health damages.

But, buying the right faucet water filter isn’t that easy, especially when you lack knowledge in key areas. Here are the fundamental factors to consider the best faucet water filters on the market.

1. Style & Finish

Ergonomics is important because eye-catching yet efficient models sell faster than those with plain designs. As faucet water filters come in different styles and finishes, they can help enhance the beauty of your bathroom and kitchen to a great extent.

So, it’s a smart decision to choose a finish that blends well with your appliances, fixtures, and the interior decoration of your space.

2. Filter Replacement Sensor

You might need an alert system to help you keep track of its usage. Usually, faucet filters require very little maintenance and simple installation. Also, these sensors can prevent you from over-using the filtration systems.

  • Light Sensors

Most high-end models have green LED light sensors that indicate proper working conditions. Also, the light might turn to yellow or red (depending on the specification) when you need to replace the cartridge or filter. When it reaches its maximum capacity, you’ll notice the absence of soft water from your faucet.

  • Day Counting Sensor

Few of the today’s models use day-counting sensors. As the name implies, these sensors track your usage from the last date of your filter’s cartridge replacement. Simply reset the counter each time you install a new cartridge and wait for the sensor to alert you when it’s due the cartridge is due for replacement.

3. Type & Size

Depending on the space around the waterline of your kitchen sink or bathroom faucet, choose the size that can work well. There are different shapes and sizes, but these features don’t make faucet filters effective.

  • Carbon

It’s common to see faucet filters with built-in activated carbon filtration systems. It includes shafts from coconut shells, charcoal, and other layers of that help to trap sediments. Carbon filters are porous materials that collect impurities as unfiltered water passes through them.

  • Reverse Osmosis

A system that supports reverse osmosis and conventional carbon filtration is a great unit. Usually, the ultra-fine membrane of reverse osmosis filters withstands the sieving of high-pressure unfiltered water. Also, they are made of acetate and they don’t need regular replacements like the conventional carbon activated filters.

  • Under Counter

Generally, filters for kitchen faucets are installed along water lines and above the sink. However, the large units are often placed under countertops for convenience. Regardless of their position, these types are ideal for undermount sinks as well as kitchens with limited space.

4. Cartridge

Depending on the manufacturer and manufacturing quality, our recommended filtering capacity for cartridges ranges between 100 to 400 gallons of water. It means they can purify hard water of the maximum volume specified on the label before their replacement time.

Replacing filters doesn’t take longer than ten minutes, but you shouldn’t forget to change when necessary. Additionally, you should get filters with built-in gauges to determine the volume of gallons filtered.

5. Longevity

The lifespan of a faucet water purifier usually depends on its design. It’s important for manufacturers to test cartridges before their products are sent to retail shelves. While the regular ones last for a few months, the high-end choices can serve for two to three years.

The lifespan of filters ensures the quality of water from your faucet before their replacement dates. You shouldn’t be surprised to see contaminated water from your tap or spout if you fail to change the cartridges on time.

6. Installation

The ease of installation is an important factor to consider. You’ll need simple tools like the adjustable wrench to adjust your faucet’s aerator. Generally, the good ones are easy to install and sometimes you may not need any tools at all.

7. Cost

On average, the cost of a good faucet water filter is between $15 to $60. They are not really that expensive but can save you a lot of money that you might otherwise spend on bottled water.

Why Use Faucet Water Filters

This type of filter is designed as a purification system for hard water where it removes contaminants and improve the quality of water. However, the number of contaminants that a filter can handle will depend on its efficiency and the degree of water hardness. You will also find water filter pitchers that serve the same purpose but in a compact form.

Generally, less than 10 percent of the contaminants (harsh chemicals, pathogens, and sediments) flow through the faucet when you install these fixtures. To achieve contaminant-free water, you’ll need to use more water filters.

Hard water is a common health hazard and it deteriorates personal hygiene. Health safety is a concern for homeowners that can’t stand the sight of hard water. Every family deserves germ-free water for bathing and drinking, hence the need to filter water. Without going through the hassle of installing complicated systems, there are models that can be installed by anyone.

Usually, when unfiltered water goes through your city’s municipal underground pipes, the carry residues and harsh chemicals from the facility.

However, you are sure to have soft water running through your tap after installing small and high-quality water filters. They work with different layers of filtration media (mesh or activated carbon) that provide physical and chemical functions. As the hard water goes through their screens, they remove contaminants from the water source.

So, the multi-stage filtration process ensures clean water supply when you turn on the faucet. Usually, the layer of compressed activated carbon in the faucet water filter is small but efficient. It’s composed of lignite, charcoal, nut shells, wood, and other materials.

The porous layer of activated carbon is a chemical filtration process that’s effective at killing bacteria. It ensures the removal of over 90% of mercury and chlorine from hard water. Apart from replaceable cartridges, the manufacturers also produce filters for reverse osmosis faucets that have an air gap.

Unlike filters that need owners to replace cartridges, this type comes with an ultra-fine membrane that’s made from acetate.

These types are durable and last a couple of years. If you are not interested in purifying water using a faucet water filter, try some other ways to purify water.

Installation Tips

There are certain procedures for installing different types of faucet water filtration systems, whether for shower heads or taps . This is necessary so you don’t have any issues in near future, like a slow filter rate or the filter leaking for some reason.

Most manufacturers have their unique designs like the one-click installation method. Usually, the whole process takes less than 10 minutes.

Sometimes, you may need a pair of plastic pliers for the installation; but generally, the process is easy with all the necessary components. Few installation processes involve the use of Teflon tapes.

  • Unscrew the faucet’s aerator with an adjustable wrench because the original plumbing installation might be very tight because of your faucet’s age. Also, don’t discard the washers in the faucet after unscrewing it. You might not need the washers immediately.
  • Clean the threading under your tap’s aerator because the source of hard water might have caused build-up around the aerator. You can apply vinegar while cleaning the surface.
  • Find the right adaptor for your faucet’s aerator; you’ll know if they both align. Sometimes, standard male faucets attach to water filters directly. You’ll only need adaptors when with female faucets.
  • It’s time to attach the filter cartridge if it’s not pre-assembled. Watch out for the point of attachment when of your filter housing and the faucet. You’ll hear a ‘clicking’ sound that confirms it’s twisted in place properly. Then, insert the filter cartridge into the case, after attaching the mounting collar.
  • Allow the faucet mount run its first filtration run for at least 10 minutes before drinking (or using) the water.
  • The right time to check for leaks is when the filter is active. By applying Teflon tape around the threads, you’ll ensure zero leaks in your kitchen’s faucet filter attachment point.

Cleaning & Maintenance

best tap water filter

One of the easiest parts to maintain in the water filter is the outside material. By cleaning the exterior surface with vinegar, it ensures effective removal of fingerprints or smudges. Here are the essential maintenance tips that will ensure germ-free drinking water without any clogs or other issues.

  • When installing or replacing (screwing or unscrewing) filter cartridges, care must be taken not to over-tighten the threaded plastic portion.
  • Avoid the use of harsh chemicals on the surface of a filter change sensor’s indicator. The LED light is a bright display, and harsh chemicals from cleaning reagents can dull their brightness.
  • Ensure to replace your filter cartridge one at a time, and adhere to the indication on your filtration device. Also, water consumption pattern may vary accordingly. So, the time to replace your filter cartridge depends on consumption.
  • Use a piece of clean rag, and few portions of vinegar (or lemon juice) to clear limescale deposits from faucet water filters. Additionally, you can dilute the vinegar (or juice) with a quarter cup of water and vinegar respectively.

Final Words

We hope you have found our in-depth review and comparison of the best faucet water filters helpful enough to make an informed buying decision. We’ll recommend the Brita On Faucet Filter for homes with children because it eliminates 99% lead from hard water. Lead poisoning in children might lead to poor brain development and this model of faucet mount water filter is an ideal product that ensures healthy living.

Additionally, the Ecosoft Countertop Drinking Water Filter System is ideal for users that don’t like to change filter cartridges often. This cartridge has longevity of six months or 1,500 gallons of water.

It’s BPA-free, food-grade plastic material has a modern design that improves your water clarity and taste. So, don’t forget to send your feedback after using these faucet mount water filter models.


1. Do faucet water filters remove chlorine?

Ans. Water filters are unable to remove chlorine fully from water. Only chlorine water filters can remove chlorine successfully.

2. Do faucet water filters kill bacteria?

Ans. Faucet water filters with reverse osmosis or UV ray technology can kill bacteria.

3. Are faucet filters better than pitchers?

Ans. Most faucet filters are better than pitchers and last longer.

4. Can mold grow in water filters?

Ans. Yes, mold can grow in your water filters if you leave it untreated for a long time.

5. Can you be allergic to filtered water?

Ans. It depends on the user’s biological sensitivity to chlorine and other chemicals that filtered water contains. People do get allergic to it sometimes.

About the author

Warner Levit

Water Filtration Expert

As a trained chemist and an independent researcher I started working on a portable water filter project as part of my business plan. While carrying out my research, I got involved with FaucetsReviewed. My fields of expertise include environmental science, biochemistry and water purification chemistry. Apart from contributing to this website, I’m currently working on my book “Water Filtration Science”. It will be published soon. I grew up in California, and completed my postgraduate degree from the University of California-Berkeley. I also work as a private counselor on the household water management system.

Leave a Comment