Top Ten Best Faucet Water Filters Reviews 2020

Want to improve the quality of your drinking water? If so, the most efficient filtering solution is the faucet mount water filter. These units represent cost efficiency, user-friendliness, and low maintenance all at the same time. This review below lists only the best faucet water filters on the market and also includes an informative buying guide to help you understand the types of faucet water filters, the benefits of using one, how to install a faucet water filter and much more.

WINNER

Engdenton Faucet Water Filter

 

  • Reduces chlorine
  • Fits standard faucets
  • NSF certified
RUNNER UP

Waterdrop Water Faucet

 

  • Tap Water Filter
  • Removes Lead
  • Easy installation
ALSO GREAT

Culligan FM-25 Faucet Mount Filter

 

  • Removes chlorine, lead, mercury
  • Built-in filter life indicator
  • Beautiful design

Top Ten Best Faucet Water Filters 2020

  1.   Engdenton Faucet Water Filter Water Purifier

Engdenton Faucet Water FilterIf your home is designed with only standard faucets, the Engdenton Faucet Water Filter is the best choice for you. Its ability to attach itself onto all standard-sized valves makes it a top-notch product, especially since many households make use of it. This is a sleek filter designed to eliminate all dangerous chemicals and contaminants present in your water before you ingest it.

What’s more, the Engdenton filter is built with durable, food-grade stainless steel and comes in an easy to install package where no extra tools are required. No doubt, this product is known to be extremely durable, thanks to its cracking-proof and no-leakage features, making it an efficient filter that can be used consistently for up to six months before a change will be required.

And to inhibit bacterial growth and also to remove sand, dust, and dirt, the Engdenton water filter employs the operation of the world’s most advanced activated carbon filter. Overall, the technology is swift, and it also helps in the improvement of your water’s taste; hence why we recommend this faucet filter as a top choice. Even better, it is backed by an excellent customer service unit that caters for all your questions and issues.

Features

  • Stainless-steel
  • High water flow
  • Ultra adsorptive material
Pros
  • Reduces chlorine
  • Fits standard faucets
  • NSF certified
Cons
  • Slow flow
  • Short filter life
  • Prone to leaking

 

Read Full Engdenton Faucet Water Filter Review Here

  2.   Waterdrop Water Faucet

Waterdrop Water FaucetSave those little drops of clean water today with the Waterdrop Water Faucet. According to the numerous online review platforms we studied, this unit has an exceptional operation that cannot be compared to many other competitors. It is a faucet water filter with a difference, designed to keep you and your family safe and satisfied.

What’s more, there are three replacement filters attached to this unit with every purchase, and a single screen can deal with up to 320 gallons of water with a typical lifespan of three months; thus, with the Waterdrop filter, you’re assured of filter replacements for at most one year. And to ensure that your water is safer and more refreshing, the filtration system of this unit has been upgraded with new technology, which removes all lead and fluoride.

It is also vital to note that, like most of the faucets on the market today, the Waterdrop is excellent only for standard size faucets. Nevertheless, its design allows you to switch from regular tap water to quality filtered water, depending on your intended use. This means you can enjoy chlorine, lead and rust-free water and make use of the 30-day money-back guarantee that comes with this product if you’re not satisfied with the filter.

Features

  • 320-gallon
  • Long-lasting filtration system
  • Fits standard faucets
  • One filter included
Pros
  • Tap Water Filter
  • Removes Lead
  • Easy installation
Cons
  • Not NSF certified
  • Prone to leaking
  • Small filter capacity

 

Read Full Waterdrop Faucet Filter Review Here

  3.   Culligan FM-25 Faucet Mount Filter

Culligan FM-25 Faucet Mount FilterThe Culligan Faucet Mount Filter is another one of the most exceptional water filtration units out there. It is made by a leading manufacturer of the water sector; thus, it’s known to be of high quality, even before tested. This faucet filter offers a high water flow, which means you will never go thirsty and also has a unique exterior design that sets it apart from most of the competition.

Additionally, the Culligan filter uses an advanced filtration system, which features a diverter tab that was included in the filter design such that users may alternate freely between regular tap water and new, filtered water. Such a choice also allows the filter to stay operative longer. Furthermore, installing this filter is very simple and doesn’t demand the use of extra tools and the filter employed in the package removes contaminants such as lead, chlorine, atrazine, lindane, and many more.

Overall, the taste and smell of your water are going to be better than before once the Culligan filter enters your home. We recommend such an exceptional filter because of its safety certification and innovative carbon block filtration method. There’s no way you’re going to have water that smells bad or tastes funny when this filter is used in your home; it’s simply not possible.

Features

  • Advanced water filtration
  • Chrome finish
  • Simple diverter tab
  • Fm-25r filter cartridge
Pros
  • Removes chlorine, lead, mercury
  • Built-in filter life indicator
  • Beautiful design
Cons
  • Prone to leaking with plastic connector
  • Short filter life
  • Slow flow

  4.   LELEKEY Tap Water Filter System

LELEKEY Tap Water Filter SystemMeet Lelekey, a brand created to make a difference in the water filtration industry. They have been in existence for the longest time, but the quality of their products has slowly improved over the years, bringing them into the limelight. Their latest addition to their filter collection is the Lelekey Tap Water Filter. This is a filtration system put together by the brightest minds that consider the needs of all customers by tailoring their filter designs to suit them all.

This tap water filter is built from premium, food-grade stainless steel and can filter up to 570 gallons of water, spread across six months. Whereas some filters use a simple three-stage filtration system, the Leleky filter cleans your water using six different stages. The six steps help to remove all odors, tastes, heavy metals, chlorine, lead, and many more.

Additionally, the filter is a crack-proof and leakage-free unit; thus, it comes with enhanced durability. And if you need a screen that is swift and excellent in the filtration process, we will recommend that you consider picking the Lelekey filter from the lot. Use water filtered for drinking, cooking, washing, and any other activity you want.

Features

  • Premium 304 stainless steel
  • 528-gallon
  • 6-stage water purifier filtration
  • Faucet mount
Pros
  • Reduces lead & chlorine
  • Bpa free
  • Fits most standard faucets
Cons
  • Filter sensor dies
  • Plastic housing can break
  • Difficult filter change

  5.   Brita COMINHKR063772 Tap Faucet Water

Brita COMINHKR063772 Tap Faucet WaterEvery home with the Brita Tap Faucet Filter can attest to its quality and top-notch performance. Our editorial team undertook countless research to identify the best filters from the rest, and Brita was mentioned as one of the most sought after cleaners in the market. A further study explained why this was so, and also offered us with enough information to include this product in our recommendations list.

The Brita filter is a single machine that accommodates two screens at a time. This means that you get double the amount of clean water as compared to regular filters, and also, your filter lasts longer before a change is needed. What’s more, it is designed for all standard sized faucets, and is user-friendly, concerning installation. To install, you don’t need any special skills or tools; thus, it takes under five minutes to complete the installation process.

Replace up to 750 standard-sized plastic bottles by getting the Brita filter. Its ability to clean 100 gallons of water means you don’t have to purchase filtered water from stores. With this filter, there are three different spray options; the unfiltered spray, the filtered water spray, and the unfiltered water spray. These stages are controlled by a simple switch attached to the filtration unit.

Features

  • One system+2 filters
  • Easy to install
  • 1-click filter replacement
  • Three spray options
Pros
  • Fits standard faucets only
  • No tools required
  • Vertical design to save space
Cons
  • Does not adjust pull out and spray style faucets
  • Poor instruction manual
  • Hot water ruins it

  6.   WEIEN Advanced Faucet Water Filter

WEIEN Advanced Faucet Water FilterEvery home demands a water filter their taps. With the full range of options available in the market today, making the final decision can be very tough. To reduce your stress, we have listed the best filters according to experimentation and observation. One of such models is the Weien Advanced Faucet Water Filter. Out of all competing models, we’re confident in the operations of this filter, thanks to a large number of customers who swear by it.

This is a simple, sleek filter with a beautiful exterior that is made from BPA free materials, which makes it eco-friendly too. What’s more, the filter cartridge used for your water is fully transparent, giving off a modern, clean vibe that many new kitchens appreciate. And to ensure that your water is safe, the Weien team uses ABD food grade filters, which aren’t familiar with other brands.

So, you can now say goodbye to thirst and hello to health with this water filtration system. Not only have Weien designed their unit to remove contaminants, but it also improves the taste of your water. Find the perfect thirst relief with this amazing water filter.

Features

  • Activated carbon
  • Water faucet filtration system
  • Removes lead & chlorine
  • High water flow
Pros
  • Removes 99% lead
  • Easy setup
  • Built-in filter life indicator
Cons
  • Undeserved bad ratings
  • Faulty light sensor
  • Problems trying to install

  7.   Instapure F2 ESSENTIALS System

Instapure F2 ESSENTIALS SystemMeet the Instapure Essentials Filtration System, an upgraded version of their F2 model. There’s no doubt that this filter system will do wonders with your water sources before your taps open. It truly a gem in the water filtration industry, having won several awards worldwide. There’s none much like the Instapure filter, that’s a fact.

This filtration system removes all odor from your water and also improves its taste. Contaminants such as chlorine, lead, and atrazine are duly taken care of to keep you protected against the elements. Safety is also assured via the safety certification awarded the Instapure filter system and the filter has been made through a series of tests to ensure that it fulfils its promise of keeping contaminants out and functional, healthy water in.

Additionally, the Instapure essentials filter is straightforward and quick to install. It doesn’t require the use of any extra tools, and it comes with a transparent cap attached to its chrome base. Watch out for quality filters, and zoom into this beauty from the Instapure company.

Features

  • Tap Water Filtration
  • Chrome Base with clear cap
  • No tools necessary for installation
  • Certified to ANSI/NSF 42
Pros
  • Removes chlorine, lead, VOCs
  • Affordable price
  • Vertical
Cons
  • Small filter capacity
  • Poor adaptor
  • You risk damaging the filter

  8.   Protect Plus WFFM100XCH DuPont Premier Mount System

Protect Plus WFFM100XCH DuPont Premier Mount SystemOne way to keep your family safe from illness and diseases is via what they put into their bodies. With water being the most frequent, ensure that they’re drinking clean water free from heavy metals and contaminants. The best way to do this is via the Protect Plus Premier Filter. This is a unique water filtration device, which has been put together with you as a priority.

This DuPont filtration system cleans up to 100 gallons of water before it needs a filter change, and it comes with a water filter cartridge system that is very easy to install. To give you the best water for cooking, drinking, and washing, the Protect Plus filter uses a four-stage filtration system, where all sediments, heavy metals, smells, and tastes are duly taken care of.

The best part about this water filter is that it can be used with any DuPont Water filter cartridge. So why not save some money and the health of your family with such an outstanding unit at your disposal? It is the superhero of many filters out there and undoubtedly one of the best you will ever find.

Features

  • Vertical faucet
  • 100-gallon filter capacity
  • Advanced four-phase protection
  • Removes 99.9% of microbial cysts
Pros
  • Smart design
  • Large size (320 gals)
  • Strong sediment and chlorine filter
Cons
  • Undeserved bad ratings
  • Faulty light sensor
  • Hot water ruins it

  9.   Delle Rosa Commercial Water Filtration Faucet

Delle Rosa Commercial Water Filtration FaucetThe Delle Rosa Water filter is a commercial water filtration system for your standard-sized faucets. It comes with a completely new, modern, and innovative design that was put together by the world’s most exceptional team of scientists and product designers. This commercial filter attaches itself to any standard sizes of a water faucet and removes all contaminants in your water within minutes.

The total package includes your filter, three adaptors for easy use wherever you please, mounting hardware which isn’t tricky to install, and connectors to ensure that your screen stays put. What’s more, the cartridge used in this filter is made from sturdy ceramic for durability, and the solid brass is also lead-free for your safety. Additionally, the filter’s exterior finish is an oil rubbed bronze, and this eliminates all chances of rust and corrosion.

The Delle Rosa is an under sink water filter system that has a fantastic warranty from the day of purchase. It is compact enough to keep out of sight, uniquely if it doesn’t blend into the theme of your kitchen. So, you can now enjoy the benefits that come with drinking clean, tasty water, and have the Delle Rosa filter to thank for that.

Features

  • Drinking water purifier
  • Under sink water filter system
  • Mounting hardware is included
  • Ceramic valve core
Pros
  • Nice water pressure
  • Good filtering capacity
  • Cheap replacement filters
Cons
  • Problems trying to install
  • Does not fit pull out and spray style faucets
  • Poor instruction manual

  10.   JONYJ faucet water purifier

JONYJ faucet water purifierIf you are after a reliable and affordable option, you have to try the JONYJ faucet water filter for your home or office. We advise that you give it a significant consideration when searching for a fast-acting water filter. Out of all competing brands, this is a filtration system that deals with all contaminants in your water in the shortest possible time. This filter, like many others, is made from premium stainless steel; thus, it exhibits traits of high durability.

The JONYJ Water Purifier reduces the amount of chlorine, lead, and fluoride in your drinking water and leaves you with clean enough water for drinking, cooking, and washing. Seasoned experts have done the construction of the filter with a desire to enhance health and safety in homes, and with this unit, there’s no chance of cracking, leakages, or irregular breakdowns.

We know your family will love this great home appliance because it is simple to install, and very durable. Furthermore, it works with standard faucets only; thus, you need to get another type of filter for your handheld or pull-out valves.

Features

  • 304 stainless-steel
  • High water flow
  • Reduces lead & chlorine
  • Fits standard faucets
Pros
  • Everything is included
  • Great tasting water
  • Easy to change filters
Cons
  • Prone to leaking with plastic connector
  • Short filter life
  • Prone to leaking

Best Faucet Water Filters Buyers Guide

With an aim to provide all the necessary information to you as a potential faucet water filter buyer, such that you have no trouble selecting the best from the rest, the below buying guide has been created for your perusal.

1. What is a Faucet Water Filter?

A faucet water filter is a unit that is designed to keep your water clean and healthy for consumption. These units operate with a connection of screens that take your water through different stages of filtration. The process includes the use of activated carbon and the removal of all sediments. This leaves your water smell-free and extremely tasty, not to forget very healthy for consumption as water from your faucet filter is ideal for drinking, cooking, and many other tasks.

It doesn’t contain metals, and it prevents you from purchasing plastic bottled water often. There are two significant types of a faucet filter, namely the direct flow-thru and the side offset flow-thru faucet filters. Both systems use either the reverse osmosis filtration system or an activated carbon filter.

2. How Does a Faucet Water Filter Work?

Many faucet filter units make use of cartridge filters for their operations. The cartridge filter is made up of different components that help keep all contaminants out of your water at all times. All models are indeed different in many ways, but they all use the same ingredients, which also operate in similar ways. Below, we divide the filtration process into its processes for a better understanding. And depending on the type of filter you purchase, the processes may differ or change totally, but the general idea remains the same.

Sedimentation

This is also referred to as the sediment removal stage. It is the first step of the filtration process, and it features the use of a non-woven screen wrapped around the cartridge filter. This screen does a fantastic job of trapping all particles no matter their sizes, such as sand, debris, dirt, and rust. From the sedimentation tank, the next step is the activated carbon filter.

Activated Carbon block

This second step features a block that has been filled with nooks and crannies. It has a porous surface to welcome the water that is now mostly clear of any sediment and rust. All contaminants in the water are trapped once the water flows through the block. The particles will then find their way into the crannies designed via the adsorption process whilst the surface of this block experiences a reduction in its efficiency since it becomes full of contaminants.

In many modern filters, the activated cartridge block is treated to give it some additional features. The treatment involves impregnation of a specific substance into the carbon, such as silver. This kills off any bacteria or fungi that might otherwise escape the carbon filter.

Chemical removal 

This is the final filtration process, and it involves a reduction in the presence of chemicals and other drinking water contaminants. Chemicals such as heavy meals remain even after the water has gone through the activated carbon filter. The chemical removing process also deals with all weird smells and tastes which affect your water drinking.

Features to Look Out for When Purchasing a Faucet Water Filter

The purchase of a faucet water filter takes a lot of knowledge about filtration systems and how they operate. One needs to understand the necessary design features which will determine the performance and durability of their unit before they make the final decision.

Filter Performance

Of course, when searching for the best faucet water filter, one will look primarily at the filter performance to determine which substances are filtered out. They will also try to determine if heavy metals are also reduced and if the filter also removes minerals that the body needs from the water, such as magnesium. The filter performance also includes the speed. This is not always the most important criterion, but there are very big differences between filters.

Size

The size of the water filter you decide to go in for will be decided by the type of faucet you own. The size will also be determined by how much space you have available for storage and use. If you’re pressed for space, you may consider using a smaller filter. While larger sizes are available for those who don’t have an issue with space provision.

Finish 

The water filter finish is deemed to be necessary by those who have a specific theme running through their kitchen. If you do, you may want to look at every brand to find one with varying colors and shapes. Choosing a filter with similar finishes with your other appliances and tools will create some balance and uniformity within your cooking space.

Filter Longevity

The best filters are those that last. When you invest in such a screen, the frequency at which you change the unit is reduced. This prevents you from having to make a change every month, and also allows you to save money for other activities and tasks, choose such a model from the start if you know you’re not very patient.

360-degree Swivel

Faucet water filters that don’t swivel can cause a lot of inconvenience to their users, especially when they’re doing the dishes. Washing large pots and pans with a faucet filter that doesn’t swivel can be very difficult and annoying. If you want to avoid such difficulty, choose a model that spins from the beginning.

Ease of Installation

No matter the model you opt for during your search, or the type of manufacturer responsible for the design of this unit, you need to ensure that any item you choose is user-friendly. This concerns its installation. When the installation process is cumbersome, it can lead to the damage of your unit or frustration of the user. The more comfortable your filter is to install, the better it will be for you, especially when it’s time to change a dirty filter. Read through customer reviews and check how easy some filter models are to install and remove.

Filter Cartridge

Some models of faucet filters use filter cartridges. They’re designed to trap all the contaminants as the water flows over them, to prevent them from getting to your faucet and into your mouth. Filter cartridge requires a change after some weeks, depending on how much water you filter weekly. If you want an economical filter, we would advise against these models. However, if you don’t mind a monthly purchase of filter candles, you can choose models with this system.

Filter Change Sensor

No matter the manufacturer, faucet water filters are generally low maintenance. their primary maintenance task is the changing of filters, and this must be done if you wish to enjoy clean water regularly. The best way to ensure the constant running of fresh and healthy water is to invest in a filter change sensor. These units come with some filter models, and they notify users about the impending need for a filter change. Some offer you notifications in the form of light indication, while some manufacturers go the extra mile to send you direct emails, based on the time of purchase.

The Benefits of Faucet Water Filters

One might think that filters have only one benefit, which is to deliver clean water to homes. this is true, but not entirely. Having such an appliance in your home offers you an endless range of benefits that affect you holistically.

Healthy water

Faucet water filters are known to produce water, which is more robust than the water offered from your faucet. This is because they block all dirt and contaminants present, preventing them from entering your pool. And depending on the level of quality you opt for, you can have a single faucet filter removing up to 70 different contaminants from your water source, leaving your water cleaner, healthier, and tastier than before.

User-friendly

Installing a water filter is very simple and straightforward. Also, it doesn’t demand a lot of time. Many people don’t know how easy the installation process is, so they try to avoid filters altogether, and that shouldn’t be the case.

No foul smell or taste

If your water has some level of nasty taste or smell, the faucet filter will do a fantastic job of removing everything. These filters work with activated carbon filters, which are known to absorb all the weird smells and tastes such that your water becomes smell-free and tasty enough for your consumption.

No chlorine

The filter you make use of will remove all chlorine from your water, no matter the model you purchase. Chlorine is found in many water sources because it is used to filter water from the primary water line. This is a chemical that does a perfect job of keeping the water clean, but it is also linked to several diseases that can be fatal.

No nitrates

There are no nitrites or nitrates when you use a faucet filtering system within your home. This faucet removes these compounds because they can be detrimental to your health once ingested. Nitrates and nitrites are found in products such as insecticides and pesticides. Their nature and composition make it easy for them to get into our water sources undetected. Having the faucet filter keeps these chemicals away from your lips and your body.

Blocks heavy metals

Water from municipal sources and many other areas feature a lot of heavy metal, and consuming these substances can be dangerous. With the faucet filter, all heavy metals are effectively removed from your water. Heavy metals can be found in contaminated soil as well.

Eco-friendly

Most faucet filter systems are environmentally friendly because they don’t produce as much waste as their predecessors, during, and after their filtration processes. Another reason why they’re eco-friendly is that they don’t need electricity to operate. This eliminates any carbon footprint. The final goal is that they reduce your purchase of plastic bottled water to keep your home end environment cleaner.

Blocks all microorganisms

Microorganisms such as cryptosporidium and giardia are stopped from entering into your water when you have a faucet filter in your home. These microorganisms can deteriorate your health drastically when ingested, and regular consumption can be fatal.

Removes plastics

The final benefit of having a water filter in your home is that these units reduce your consumption and purchase of plastics, encouraging a healthier and cleaner environment. Many manufacturers don’t use food-grade plastic for their water bottles; thus, the presence of a filter prevents you from making any purchase, which can affect your health.

Faucet Water Filter Installation Steps

The installation process for a faucet water filter is straightforward and time conscious. The process is generic, with a little tweak introduced by the different manufacturers in the industry. Every installation starts the same way, which is the removal of the faucet’s aerator. Also, users need to have tools such as Teflon tape and an adjustable wrench at hand.

After removing the aerator, screw on a new aerator onto your faucet, and insert your filter, if it’s not pre-assembled. Before tasting the water, we will advise you to allow it to run for up to ten minutes, activating the filter in the process. After your screen starts its operations, you must check for leaks, and fix them with Teflon tape, if any.

Faucet Water Filter Cleaning and Replacement Tips

Depending on the filter model and the manufacturer you purchase from, the filter change process will differ. The general rule of thumb for these procedures, however, is that they don’t need to go past five minutes. The models with filter change indicators need to be adhered to; else, the entire unit stands the risk of experiencing damage. If you’re lucky, your manufacturer might send you an email when it’s time for a filter change.

Cleaning a filter is easy. When you notice dirt or limescale on your filter, you can clean it by using a vinegar and water mixture or a combination of water and lemon juice. Dip a rag in your mixture and then use the rug to remove all limescale. Allow the filter to dry thoroughly before fixing the front panel. The inability of the filter to drain can cause mold and new limescale to develop.

Types of Faucet Water Filters

Direct Flow-Thru Faucet Filter

The direct flow-thru faucet filters are designed to extend out of your faucet; thus, they need to be attached to the end of your plumbing. They are the most affordable type of faucet filters, and they’ve also come with a higher level of quality. Some users don’t like the direct flow-thru filters because their design offers a small surface area. The smaller space means that they can’t filter very tiny particles. Also, because of how rapid their operations are, they require regular replacements, and this introduces the matter of additional costs.

Side Offset Direct Flow-Thru Faucet Filter

The second type of faucet filter is the side offset flow-thru filter. This is a large unit than the direct flow-thru filter, and it is also more expensive. The price aside, this unit offers more advantages than the direct flow-thru system, and also allows for a broader range of applications for your satisfaction. The first benefit of the side offset flow-thru filter is that it has higher reliability, and even though it is bulkier, it tends to last longer.

Installation of the side offset flow-thru unit is also more straightforward than the linear filter system. It requires only a few glances at the instruction manual; thus, your installation time shouldn’t exceed ten minutes. The side offset flow-thru filter has two different types. The first model uses the reverse osmosis system of filtering, while the second uses the activated carbon filter, which absorbs all contaminants into nooks and crannies.

 

 

Best Faucet Water Filters FAQ

Q: What Should I Do with The Used Filters?

Filters need to be recycled as much as possible. Recycling is made easy by manufacturers because they allow you to use a return shipping label, which sends the screen back to them for recycling. There is another option which is to find a recycling campaign closer to your home and contributing to their cause.

Q: How Often Do I Have to Change the Filters?

Many water filter models come with indicators that inform you of the need to change your filter. As soon as these indicators start to change colors, you need to follow their instructions to prevent damaging your filter model. The best way to know the ideal changing time for your filter is to calculate the amount of water you filter within a week and use that as an estimate for the rest of the month.

Q: Does My Water Filter Remove Limescale?

The various water filters in the market all come with the ability to remove specific contaminants. Despite their different designs, most faucet filters can remove all magnesium and calcium elements from water. These two elements are the main components that make up limescale and its build-up; thus, with both absent, It is safe to say that water filters remove all forms of limescale.

Our Final Thoughts 

The level of efficiency portrayed by modern faucet water filters has increased, especially when it is compared to filter models of old. In recent times, these products can remove many contaminants from your water source to ensure that you’re drinking healthy water as often as possible. Modern filters are also high because they’re technologically advanced; thus they don’t produce a lot of waste. Such sustainability goes a long way to keep our environment safe and healthy. We’re confident that everyone who reads this article would be well informed in making a perfect choice when purchasing a faucet filter for their home or office.