Faucet Water Filter

In most cases, tap water is safe enough to drink for people who have developed tolerance after years of consumption. However, water contamination is not a new problem for a lot of areas. There are hundreds of pollutants in most drinking water, including chlorine and lead. While inconsequential in small amounts, a buildup of these contaminants in your drinking water can be a danger to your whole family. Finding the right water filtration system that works for everyone is essential in ensuring your health and wellness.

While water filters are available in a variety of types and sizes, some types may be easier to install, use, and maintain, and less expensive than others. You have faucet attachments, countertop or under-sink filters, Reverse Osmosis systems, and even whole house filters with purifier and softener. A faucet water filter is usually easy to install and mounts to any standard kitchen faucet to filter the water as it passes through.

A lot of water faucet filters have similar features and it can be an overwhelming task to find the best one. That’s why, we’ve come up with this list and guide to help you make a decision. Below are our top 7 picks for the best faucet water filter today.

Best Faucet Water Filters in 2022

Brita Faucet Water Filter

 Brita Faucet Water Filter

Filter capacity: 100 gallons

Material (Finish): Plastic (White/Chrome)

Dimensions: 5.4 x 2.4 x 8.2 inches

If you want safer, better-tasting water straight from your kitchen faucet, the Brita Faucet Water Filter System provides an easy and reliable solution fit for most standard faucets. It removes 60 different types of contaminants including 99% lead, as well as chlorine taste and odor in city tap water. Certified to NSF/ANSI Standards 42, 53, and 401, Brita is guaranteed to meet all the requirements for material safety and effective removal of common water contaminants.

The Brita faucet filter uses an activated carbon material that traps contaminants and prevents them from passing through with the smaller particles of water. At a flow rate of 0.5 gallons per minute, the filter can decontaminate 100 gallons of water (about 750 standard 16.9-oz water bottles), or last up to three to four months before you’ll need a replacement. At this time, the indicator light will flash orange to notify you. The “1-click” filter replacement is super easy and you can purchase filter cartridges in packs to save a few bucks. 

Like most other faucet water filters, Brita can be installed without any difficulty. Simply unscrew the aerator from your faucet, then attach the filter directly to your faucet. If needed, use one of the provided adapters. The filter is compatible with most standard faucets, but not with spray-style faucets or pull-out faucets. It also offers three spray options for everyday needs: filtered water, unfiltered water, and unfiltered spray. This Brita faucet filter system is available in chrome and white finishes to fit your kitchen aesthetics. Although, due to the plastic material, it may be prone to leaking.

• NSF/ANSI Standards 42, 53, and 401 Certified
• Filter change reminder
• Simple and quick installation and filter replacement
• Doesn’t reduce all contaminants
• Made with material prone to leaking and breaking


PUR PFM400H Faucet Water Filter

Filter capacity: 100 gallons

Material (Finish): Plastic (Chrome)

Dimensions: 3.2 x 7.3 x 7.7 inches

Another tried and tested way to get filtered tap water straight from your faucet is the PUR Faucet Filtration System. It is NSF/ANSI Certified to Standards 42, 53, and 401, for the reduction of over 70 contaminants in your tap water, like 99% lead, mercury, and other heavy metals as well as pesticides. The activated carbon traps particles 0.3 microns and larger, effectively reducing contaminants as the water flows through the faucet. It also contains the PUR exclusive MineralClear core for a crisper, fresher taste.

This PUR faucet filter delivers filtered water at a rate of 0.5 gallon per minute. A single filter provides up to 100 gallons of water. It should last between two and three months depending on usage, and the filter change indicator light will remind you when you need a replacement. The on/off lever gives you an option to get filtered or unfiltered tap water.

To start enjoying cleaner and better tasting water, simply attach the device onto your faucet until you hear a click. No tools or experience are required for installation. It is designed to attach directly onto standard kitchen faucets, but you may need one of the adapters included if your faucet has a unique design. If nothing fits, it’s best to contact the manufacturer. This space-saving filtration system sits horizontally on your faucet and requires little maintenance besides filter changes at least three times a year. 

• NSF/ANSI Standards 42, 53, and 401 Certified
• Filter change reminder
• Simple and quick installation and filter replacement
• Filter change indicator does not work for some
• Made with material prone to leaking and breaking

Waterdrop WD-FC-01

Waterdrop WD-FC-01 Faucet Water Filter

Filter capacity: 320 gallons

Material: Plastic

Dimensions: 8.1 x 7.1 x 2.9 inches

The Waterdrop Water Faucet Filtration System is the perfect solution for safer and healthier drinking water for the whole family. It is designed to fit on most standard kitchen sink faucets with a higher capacity of 320 gallons to instantly provide filtered water for everyone. It is NSF/ANSI Certified to Standards 42 and 372 for reduction of chlorine, fluoride, lead, sediments, and other common contaminants in your water.

Water drop uses a multi-stage filtration to remove a broader range of contaminants more efficiently. It includes a preliminary stainless steel mesh to trap larger sediments, a pre-sediment layer that filters sand, rust, and smaller particles. Then, the main activated carbon filter works to remove up to 94.2% chlorine taste and odor. 

This filter system attaches directly onto the faucet except for pull-out, hand-held, or spray models. If it doesn’t fit, the manufacturer provides six common faucet adapters in your purchase. A single filter cartridge lasts up to three months. Although, one issue is the lack of a filter light to remind you when to  change the filter. Since the structure is mostly plastic, it may be prone to leaking and breaking after continued use.

• NSF/ANSI Standards 42 and 372 Certified
• Longer filter life
• Simple and quick installation and filter replacement
• No filter replacement indicator

Culligan FM-15A

Culligan FM-15A Water Filter

Filter capacity: 200 gallons

Material (Finish): Plastic (White/Chrome)

Dimensions: 3.5 x 5.5 x 6.8 inches

For kitchen sinks with limited space, this light and compact Culligan FM-15A Faucet Water Filter offers an easy yet effective solution for cleaner and safer tap water. Although small in appearance, this filter system performs to the standards of other, larger and more expensive models to meet your expectations. It is tested and certified to NSF/ANSI Standards 42 and 53 to reduce 97.5% chlorine taste and odor, as well as 99.3% lead, 99.9% cysts, and VOCs.

The Culligan FM-15A delivers filtered water at 0.6 gallon per minute, providing up to 200 gallons or three to four months of use before you will need to replace the filter cartridge. Instead of a filter change indicator light, you can refer to the filter reminder sticker that comes with the unit. Changing the filter may be more difficult than other models as you will need force to open the filter housing. Culligan filter cartridges also aren’t the cheapest out there.

The unit mounts directly onto standard faucets in seconds with no tools or experience required. The manufacturer provides two aerator adapters, which may be too flimsy, as some users report. Upon installing, you can switch from unfiltered to filtered water by pulling the diverter valve stem. This faucet filter system is also available in a chrome finish (Culligan FM-25A).

• NSF/ANSI Standards 42 and 53 Certified
• Quick and easy installation
• Changing the filter may be difficult
• No filter change indicator light

Engdenton Faucet Water Filter

Engdenton B07DCMD991 Faucet Water Filter

Filter capacity: 320 gallons

Material: Stainless steel

Dimensions: 5.8 x 4.8 x 3 inches

As you may notice, a common problem with leading faucet filters in the market is the plastic construction which makes them prone to leaking and breaking. With a high-quality 304 stainless steel exterior, the Engdenton Faucet Water Filter offers a durable, longer lasting solution for cleaner water. It can reduce chlorine, lead, and other common water contaminants, although there is no known NSF certification for this brand. 

It uses a Japan-import activated carbon fiber with a claimed 10 times filtration ability and extended lifespan, eliminating particles as small as 0.5 microns. The system delivers up to 320 gallons of filtered water, lasting up to six months, depending on usage. With a flow rate of 0.5 GPM, it can fill about 8 cups of water in a minute. You have options for unfiltered and filtered water, and 360-degree rotation to direct the water output in any direction.

Like the rest of our picks, Engdenton directly mounts onto most standard faucets, with a few adapters included for other faucet designs. The biggest advantage to the Engdenton filter is its stainless steel exterior, which looks far better than most of the white, plastic filters that are more common. It is also more durable and leak-proof than plastic designs, which tend to crack after a few months of use. While many users will attest to the quality of this filter, note that we found no evidence of any certification from a recognized authority in water quality. 

• Durable, leak-proof stainless steel exterior
• Longer filter lifespan
• No evidence of NSF certification
• No filter change indicator light

Wingsol Faucet Water Filter

Wingsol Faucet Water Filter

Filter Capacity: 320 gallons

Material: Stainless steel

Dimensions: 5.31 x 5.12 x 2.76 inches

Another high-quality stainless steel tap water filter we recommend is the Wingsol  Faucet Water Filter. Although it may come at a higher price than top brands, it’s worth switching to stainless steel from plastic products. The sturdy and crack-proof construction means you can use it for a longer time without needing yearly or more frequent replacements.

Unlike the Engdenton, Wingsol is tested and certified to NSF/ANSI Standard 42 to reduce chlorine taste and odor, lead, mercury, and other common contaminants. It can filter up to 320 gallons of water, lasting for a longer period of six months. The quick flow rate delivers up to three liters or 12 cups of water in one minute.

For easy installation, this faucet filter attaches directly onto your faucet, with four included adapters if needed. The one-piece housing design helps prevent rusting and leaking that is common in welded models. Although, there is no filter change indicator to remind you when you need to replace the filter, so you will have to note the dates of filter replacement or check for changes in the water quality.

• Durable, leak-proof stainless steel exterior
• NSF/ANSI Standard 42 Certified
• Longer filter lifespan
• No filter change indicator

InstaPure F2 Essentials

InstaPure F2 Essentials Water Filter

Filter capacity: 200 gallons

Material (Finish): Plastic (White/Chrome)

Dimensions: 3 x 6 x 7 inches

Another effective yet affordable solution for improving the taste and odor of your drinking water is the Instapure F2 Essentials Tap Water Filtration System. It is WQA Gold Seal Certified and tested to NSF/ANSI Standards 42 and 372 for the removal of 97% of chlorine, 99% of lead, microbial cysts, and VOCs. Instapure filters use high quality coconut carbon that absorbs organic compounds and provides better tasting water. The on/off lever lets you switch between filtered and unfiltered water,

While this water filter may be priced lower than most other brands, it does not affect the quality and performance of the product. With a capacity of 200 gallons, each filter cartridge can last up to three months. The F2 Essentials features a unique design with a chrome (or white) base and a clear cap where you can see the filter inside. 

Like other faucet mount filters, it attaches directly onto a standard faucet or using one of the adapters provided. However, the plastic construction and rubber washers may pose some difficulty during installation and make the system prone to leaking and breaking more than other models.

• NSF/ANSI Standard 42 Certified
• Made from high-quality, durable material
• Plastic construction prone to leaking and breaking
• No filter replacement indicator

What is a Faucet Water Filter?

A faucet water filter is a point of use (POU) water filtration system that provides cleaner, filtered drinking water straight from your kitchen sink. Most of these water filters are designed to remove contaminants as the water passes and deliver the water instantly, so they don’t have a built-in storage tank.

With this type of system, the main filtration is usually done on a cartridge filter, which has more components that work together to reduce contaminants in the water. In some models, water undergoes multiple stages of filtration, including a pre-filter to remove large sediments, and the main filter, an activated carbon media to reduce contaminants and unpleasant tastes and odors. 

When both the faucet and filter are switched on, it produces filtered water immediately. Unlike other types of water filtration, like reverse osmosis, this faucet-mount type of water filter produces no wastewater. Everything that goes into the system goes out as filtered drinking water.

While faucet water filters work effectively to reduce contaminants in the water, it’s important to note that they do not purify the water or kill bacteria. If you have a highly contaminated water source, it might still be unsafe for drinking even after you filter it. Reverse osmosis and Ultraviolet disinfection treats impurities that a basic tap water filter cannot catch.

How Do Faucet Water Filters Work?

Faucet water filters are designed to mount directly onto your kitchen or bathroom sink faucet. Instead of coming out from your faucet’s spout, cold water passes through the attached filter system where the water filtration process will happen. Here is the basic process in water filtration:

First, a pre-filter layer removes larger sediments. Water filters typically use a non-woven screen or mesh that is wrapped around the cartridge. The screen catches particles such as rust, dirt, debris, and sand.

Next, the activated carbon media removes heavy metals, chemicals, and organic compounds. This is the main filtration process that removes smaller particles in the water that may be harmful to your health. It uses a method called adsorption wherein the millions of little pores in carbon granules act as a sponge and catch contaminants. A slower water flow rate means the water is in contact with the carbon block for longer and thus more chemicals are removed.

Finally, a post-filter layer removes any additional chemicals the carbon block may have missed.

While activated carbon is effective at removing some contaminants such as chlorine, sometimes it misses other ones like magnesium and calcium. The final chemical removal process removes other contaminants like lead, nitrates, and mercury. This process may also improve the taste and eliminate any odors from the water, giving you cleaner, safer, and delicious water.

Benefits of Using a Faucet Water Filter

If you still need a little more convincing, here are some of the benefits of using a faucet water filter:

It provides clean and safe water. Whether it’s for drinking, cooking, or what have you, a faucet filter ensures you get water without the common contaminants. After all, its main purpose is to remove harmful chemicals and minerals including lead and chlorine in your tap water in order to make it clean and safe for consumption.

It helps you save money. While there is the initial cost of a faucet water filter and the following replacement filter cartridges, using a filter will ultimately save you money from buying bottled water. Rather than buying water in single-use plastic bottles, you can simply fill a glass from the faucet’s water whenever you want. At the same time, it reduces your plastic waste, helping you do your part in conserving the environment.

It offers convenience. A faucet water filter provides fresh, clean water whenever you want, without needing to buy from the store. This type of water filter is also more convenient than other filtration systems. For example, a pitcher filter is limited by the water capacity the pitcher can hold. Some people may also want the option to use either filtered or unfiltered water for different purposes. For instance, if you need cold water to wipe down surfaces or water your plants, it might be a waste to use filtered water. With a faucet water filter, you can switch it on or off to choose when you want unfiltered water straight from your tap.

It saves space. Because it attaches directly onto your faucet, you can get clean water without having to sacrifice some of your counter space. While countertop water filters can look bulky and out of place, most faucet water filters offer compact solutions that will not get in your way. Some manufacturers may also offer different colors and finishes for you to choose which best suits your interior design.

It is easy to install. Again unlike other water filtration systems, a faucet-mount filter is simple to install.  Most units can be done in under five minutes without any difficulty. With basic mechanical skills, you can install your faucet water filter yourself and avoid the extra cost of hiring a handyman or plumber. In any case, all filters usually come with detailed instructions for installation, and are typically partially assembled in the factory prior to shipping. You will need to install the faucet filter, connect the filter to the cold water pipe in your kitchen sink – this typically isn’t too complex.

Factors to Consider When Choosing the Best Faucet Water Filter

Before making any purchase, consider some important factors that can help you find the best faucet water filter. This includes your water source, the filter material, flow rate, and installation requirements. 

Water Contaminants

Your home’s own water source is the first factor that determines your water filtration needs. You may want to learn more about the contaminants in your water before you make a purchase. There is a wide range of contaminants that can be found in tap water across the country. We’re looking at chemicals, pesticides, organic compounds, pharmaceuticals, and harmful heavy metals.

Chlorine and chloramine are commonly used to disinfect public water supplies. They can help make the water safe to drink, but if the levels of chlorine and chloramine are too high, they can lead to eye and nose irritation, as well as stomach discomfort. You’re probably familiar with the smell of chlorinated water from swimming pools, and that’s definitely not something you want in your drinking water.

Fluoride is another chemical that may be added to tap water. In small amounts, it may be good for dental health. However, in high levels, fluoride can actually cause dark stains and pits on teeth when exposed for a long time.

Lead is also a common water contaminant from lead pipes, faucets, and plumbing fixtures, particularly those made prior to 1986. Lead can be harmful if it builds up in the body, especially for children. Lead poisoning usually takes months to years of exposure to small amounts of lead, but when exposed to large amounts, it can quickly result in lead poisoning.


Faucet water filters are typically made with either plastic or stainless steel. Plastic faucet water filters (like most of our top picks) are quite affordable. They are also resistant to corrosion and rusting. While some models may be more thick and durable, plastic is still plastic and it can break easily after months of use. For this reason, plastic filters will need to be replaced more frequently than stainless steel filters, maybe every one or two years if the whole family uses it frequently. 

On the other hand, faucet water filters made with stainless steel cost a bit more initially. However, they will last longer and tend to do a better job, with fewer leaks. These filters also generally look more pleasing as they blend well with your house interior.


The filter capacity is typically indicated in the product information or on the manufacturer’s website. After a certain amount of water has been filtered through the cartridge, it begins to lose effectiveness. These cartridges typically have a lifespan measured in gallons of water, ranging from 100 to 1,000 gallons, depending on the brand and model. Some water filters also come with cartridge replacement recommendations from two to four months so that you don’t have to monitor the total amount of water flowing through the filter. 

Note that a filter’s lifespan can be affected by external factors, like the quality of your tap water, as well as the frequency of use. By using the filter only for drinking or cooking, you can extend the life of the filter, saving your time and money for replacements.

When the filter starts to lose its effectiveness, you don’t need to replace the whole filter system. Simply remove the filter cartridge and replace it with a new cartridge. Most manufacturers provide cartridge replacements compatible for each model so you don’t have to look far. Some may also offer them in packs so you can buy ahead.


It doesn’t come as a surprise that the best faucet water filtration systems are tested and certified by authorities such as the NSF International or the Water Quality Association (WQA). Having a seal of approval or certifications prove that the product works as efficiently and effectively as it is advertised. Some common certifications given to water filters include NSF Standards 42 and 53, for aesthetic (taste and odor) claims, and health effects, respectively.

Other Considerations

Filter change sensors notify the user when the filter cartridge needs to be replaced. This typically comes as a small light on the side of the filter that can either activate when the filter needs an immediate cartridge change or a few weeks prior, giving time to get a new cartridge.

To determine a product’s quality, it’s also important to look at the included manufacturer’s warranty. A longer coverage period gives you confidence in the quality of the product and assurance that you can return the unit or request free replacement parts or refund in case any issue occurs. A one-year warranty is most common in faucet water filters, although some may offer up to two years.

Faucet Water Filter Installation

Installing a water filter for your faucet is fairly easy with minimal skills and tools required. The following basic steps outline the general process of installation. Your own filter might have specific instructions for connecting and fitting, so make sure to check and follow them carefully to prevent any problem, like leaks.

‎1. Unscrew the aerator from your faucet. 

2. Determine if you need an adapter. Most filters attach directly onto standard faucets. If your faucet threads are on the outside, you will most likely not need an adapter. Try to attach the system directly to the faucet. If it does not fit, try one of the adapters provided

3. If your faucet threads are on the inside, you may need to use one of the adapters and rubber washers included in your purchase. Select the proper adapter and washer that fits your faucet. If nothing fits, it’s best to check with your manufacturer.

4. Secure the base of the filter on the faucet spout, but do not overtighten. 

5. Insert the filter cartridge into the filter cup. This step may vary from model to model. Depending on whether it has a filter change indicator light, it may require additional steps to properly place the filter cartridge.

6. Close the cap or cover to secure the filter cartridge inside.

7. Turn the filter lever or valve to switch to the filtered water setting. 

9. Turn on the faucet to flush the new filter for five to 10 minutes depending on manufacturer instructions. 

Faucet Water Filter Maintenance

What’s so great about faucet water filters is they require little maintenance, apart from the filter cartridge replacement every two to four months. If you use a faucet water filter with a filter change indicator, you must follow its indication and change the filters as needed. If your faucet water filter doesn’t have a filter change indicator, we suggest you mark the date you changed the filters on your calendar. Furthermore, check if there’s any change in the water quality when the time for replacement is near.

If the base of the filter system starts to pick up dust or sediment, remove it from the faucet and wash it with warm, soapy water. The connecting pipes can also be cleaned as per your user manual. The filter cartridges won’t need cleaning themselves, since you’ll simply replace them when they stop working as efficiently.

Over years of use, it’s likely that your faucet water filter will start to show signs of natural wear and tear and may need some basic repairs. If something in your system breaks, most manufacturers offer replacement components like plastic tubes and connectors. Check that a component is compatible with your filter model before you make a purchase.


Are faucet mount water filters good?

Faucet-mounted water filters eliminate many more contaminants than pitcher filters do, last longer between replacements, and give you filtered water from the sink on demand.

Do faucet filters work on all faucets?

Most faucet water filters fit on standard faucets. Pull-out, hand-held, spray types, and other unconventional faucet designs are not compatible with faucet-mount filters. You may opt for countertop or under-sink filtration systems that connect directly to your water lines.

How much do faucet water filters cost?

Some of the best faucet water filters come at $20 to $50 at the time of this writing. Plastic models are typically cheaper than stainless steel. Replacement cartridges are usually available for $10 to $30 each.

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