The 7 Best Faucet Water Filters (October 2023)

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Looking for the best faucet water filter?

Here, we’ve shared our reviews of the most popular faucet mount filters available today, based on our research and testing into filter quality, contaminants removed, longevity, customer feedback, and overall value for money.

🥇7 Best Faucet Water Filters

📊 Comparison Chart of Faucet Water Filter

ProductPUR Plus Faucet Filtration System
PUR Plus
ZeroWater ExtremeLife
ZeroWater ExtremeLife
Waterdrop FC-06
Waterdrop FC-06
Invigorated Water pH Purify
Invigorated Water pH Purify
Brita Complete Faucet Filtration System
Brita Complete Faucet Filtration System
Crystal Quest Bath Ball Filter
Crystal Quest Bath Ball Filter
Crystal Quest Faucet Mount Water Filter System
Crystal Quest Faucet Mount Water Filter System
Contaminants Removed70+ 5+10+7+6010+20+
ProcessActivated Carbon + Ion ExchangeActivated Carbon + Ion ExchangeActivated CarbonActivated Carbon, KDF, Zeolite, TourmalineActivated CarbonGACGAC, Redox Alloy, Ion Exchange
Certifications or TestingNSF 42, 53, 401NSF 42, 53NSF 42, 372NSF 42, 53, 401
Flow Rate0.52 GPM0.50 GPM0.50 GPM0.50 GPM0.60 GPM0.60 GPM0.30 GPM
Filter Capacity100 gallons / 3 months400 gallons/ 6 months320 gallons/ 3 months6 months100 gallons/ 4 months2,000-2,500 gallons/ 12-18 months2,000 gallons/ 6-12 months
Annual Cost$30-$50$30-$45$30-$45$30-$40$40-$60$40$30-$60
Warranty2 years2 years1 year1 year1 year1 year1 year

⭐ Best Faucet Water Filter Reviews (2023)

This affordable faucet water filter system takes the number one spot on this list due to its ability to remove more contaminants than any other faucet filter we’ve reviewed. It’s available in both horizontal and vertical configurations and is NSF certified to remove up to 99% of lead and other contaminants larger than 0.3 microns.

Key Features:

  • Removes 70+ contaminants – The PUR Plus Faucet Mount Water Filtration System is more than your basic chlorine removal system. It removes more than 70 contaminants, including lead, mercury, disinfection byproducts, and VOCs. Download the performance data sheet here.
  • NSF certified performance – The filter’s activated carbon media and ion exchange resin combine to offer a performance that has been NSF certified to Standard 53 (for the removal of 99.7% lead, as well as mercury, copper, and some other heavy metals), and Standard 42 (for the reduction of chlorine, taste, and odor).
  • Vertical & horizontal configurations – You can buy this PUR faucet filter with horizontal or vertical mounts. There’s no difference in performance, but you might prefer the vertical mount option because it gives you a bit more room around your faucet.
  • 100-gallon filter capacity – The activated carbon filter capacity is 100 gallons, so it should last 2-3 months before you will need to replace it.

Best For:

Folks who want to invest in the very best faucet water filter, that is tested and certified to remove more contaminants than any other faucet water filter and is sold by a reputable, manufacturer.


  • The obvious advantage of the PUR Plus Faucet Mount Water Filtration System is its superior contaminant removal abilities. Most faucet water filters can only remove a handful of aesthetic contaminants, but this PUR filter can remove more than 70 contaminants with harmful health effects, including lead, VOCs, pesticides, herbicides, BPA, and more.
  • You can taste the difference in your filtered water. Water tastes fresh and clean, with no residual chlorine taste or smell.
  • Price is another benefit of this filter. It might not be the very cheapest model available, but we think $30 for the most capable faucet water filter on the market is nothing to complain about.
  • It’s great to see an official NSF certification to support the manufacturer’s performance claims.


  • Some customers found it difficult to screw the water filtration system on their faucet.
  • A few people had some issues with a leaking filter.

Read the full review: PUR Plus Faucet Filtration System Review

There are a lot of similarities between this system and the PUR model, but it has a few unique benefits, including a WQA certification for PFOA/PFOS reduction and a longer filter lifespan of 6 months. However, these benefits come at an extra cost – the filter is more expensive at around $45.

Key Features:

  • Removes several common contaminants – The ZeroWater ExtremeLife Faucet Mount can remove a number of common tap water contaminants, including chlorine, lead, PFOA/PFOS, and particulates class I.
  • WQA certified to NSF Standards – This ZeroWater filtered water unit has obtained WQA certifications for the reduction of PFOA/PFOS, chlorine, and particulates class I, and also has third-party testing for the reduction of up to 98% lead. Check the performance data sheet here.
  • 400 gallon filter capacity – You can use the ExtremeLife Faucet Mount for up to 6 months before a replacement is needed.

Best For:

Anyone with a bigger budget who’s happy to spend more money upfront on a faucet filter with a longer lifespan, or anyone who’s specifically looking for this type of filter that can reduce PFOA/PFOS.


  • Filter life is a big standout feature of the ZeroWater ExtremeLife Faucet Mount. It lasts for 400 gallons – that’s four times the capacity of the Pur Plus faucet filter. You’ll only need to replace the filter twice a year, which is great for a faucet filter (which is renowned for its short flter lifespan).
  • The filter also has a few performance abilities that the PUR model doesn’t offer, including the ability to reduce PFOA/PFOS (with a WQA certification to prove it).
  • We think the filter’s design is smarter and sleeker than the standard faucet water filter design, and shouldn’t look awkward as an extension of your kitchen faucet.


  • Faucet filters are known to be affordable, but the ExtremeLife Faucet Mount Filter is about 30-40% more expensive than the majority of its competitors.
  • While it’s great that this filter is certified for contaminant removal, it doesn’t appear to remove anywhere near as many contaminants as the PUR filter.

This faucet-mounted filter is one of the only systems we’ve reviewed that’s made from stainless steel (rather than plastic with a chrome overlay), meaning it’s harder-wearing and should last longer without cracking or leaking.

Key Features:

  • Removes chlorine, lead, and more – The Waterdrop FC-06 can reduce chlorine, lead, and fluoride, along with various other common contaminants such as sediment, rust, and other particles.
  • NSF certified to 2 Standards – The filter is NSF certified to NSF Standard 42, for removal of up to 98% chlorine. It’s also certified to Standard 372 for lead-free material.
  • Sturdy stainless steel design – Rather than having a plastic design, the Waterdrop FC-06 is made from 304 food-grade stainless steel, which is durable, won’t leach plastics into your water, and is more resistant to water pressure.

Best For:

Folks who prioritize material quality and longevity and want the best faucet water filter that should last longer than plastic-based systems.


  • Sturdiness and durability are two key reasons to love the Waterdrop FC-06. Its stainless steel design makes it stronger and longer-lasting than most other faucet-mounted filters, which are more likely to split and leak with prolonged use.
  • Considering you’ll probably get a few more years out of this filter, we think the upfront cost (less than $50) is fair when you consider long-term value.
  • There are two adapters included to fit most faucet types.
  • Not many faucet filters can reduce fluoride, so it’s good to see that this is a performance feature offered by the FC-06.


  • We couldn’t find a performance data sheet for this Waterdrop system, and it’s not obvious exactly how many contaminants it can remove.
  • Some people had problems with leaking from the filter seals.

This alkalizing filter uses a combination of diatom ceramic media with granular activated carbon, several other filtration media, and tourmaline and an alkaline blend to raise the pH of filtered water with trace elements and healthy minerals.

Key Features:

  • 8-stage water filtration – There are 8 stages of filtration packed into the Invigorated Water pH Purify:
    1. A diatom ceramic layer, which reduces rust and chemicals
    2. Coconut shell granular activated carbon (GAC), which adsorbs chemicals like chlorine
    3. Calcium sulfite, which reduces chlorine and chloramine
    4. KDF, which further reduces chlorine and chloramine, as well as cadmium, copper, and other heavy metals
    5. Zeolite, which reduces fluoride and some heavy metals
    6. An alkaline blend, which increases pH & -ORP and adds trace minerals
    7. Tourmaline, which further increases pH
    8. A PP layer, which reduces sediment like sand and rust
  • Removes contaminants & remineralizes water – As well as reducing contaminants like chlorine, chloramine, heavy metals, fluoride, and sediment, this Invigorated Water faucet-mount filter also raises alkalinity and adds minerals to your drinking water.
  • 6-month lifespan – You can use the filter for up to 6 months before a replacement is needed.  

Best For:

People looking to filter and alkalize their water in one with a faucet-mounted filtration system that’s affordable and long-lasting.


  • We love the unique water quality benefits offered by the Invigorated Water pH Purify Multi-Stage Faucet Water Filter. It’s the only faucet-mounted filter we found that alkalizes water and increases pH as well as filtering it. That means better-tasting, healthier water from your faucet.
  • This isn’t just your basic carbon filter. You should notice a significant improvement to your water taste, odor, and overall quality thanks to the numerous filtration stages, which each target specific groups of contaminants.
  • The filter’s 6-month lifespan is pretty good, too. If you want to keep maintenance costs to a minimum, you’ll appreciate only having to change it once a year.
  • Invigorated Water’s 60-day money-back guarantee means you can buy and try this filter risk-free.


  • We think some of Invigorated Water’s promises are misleading. The alkaline blend is said to “soften hard water”, which makes no sense since this filtration layer will actually add alkaline minerals (which are responsible for hard water).
  • Again, there’s no performance sheet for us to consult, so we simply have to take the manufacturer’s word for it.

This filter costs less than $20 – pretty impressive given that it’s NSF certified to remove 60+ common contaminants including 99% lead. What brings down the price? Most likely the filter’s short lifespan (it only lasts for 3-4 months, so at most, you’ll need a filter replacement 4 times a year).

Key Features:

  • Removes 61 contaminants – The Brita Complete Faucet Filtration System uses carbon block technology and multi-stage filtration to remove almost as many contaminants as our top-pick PUR Plus filter. It can remove 61 other contaminants in total (on our count), including lead, benzene, TTHM, VOCs, chlorine, particulate class I, BPA, and some pharmaceuticals. See the contaminant removal data in the user manual.
  • NSF certified to 3 Standards – The NSF has awarded Brita 3 performance certifications for its Faucet Filtration System. It’s certified to Standard 42, for reducing chlorine and particulate class I, as well as Standard 53, for contaminants with health effects (including heavy metals and VOCs), and Standard 401, for emerging compounds (like pharmaceuticals and BPA).
  • Filter replacement indicator – This Brita faucet water filter is one of the only faucet-mounted filters that has a handy filter replacement indicator light, which monitors the filter life and flashes red to tell you that a new filter cartridge is needed.

Best For:

Anyone with a smaller budget who wants to spend less upfront on a faucet-mounted filter without compromising on design quality or performance.


  • Price is a big benefit of this filter. It costs half as much as most of the other faucet filters on this list.
  • It’s pretty amazing that the Brita Complete Faucet Filtration System is so affordable given its impressive contaminant removal abilities – especially since the filter has several official NSF certifications for its performance.
  • The filter replacement indicator takes the guesswork out of filter changes, and the “1-click” filter change is super simple.


  • Filters in this system have a shorter lifespan than many of the best faucet water filters on this list. You’ll need to buy more replacement filter cartridges, which will increase your annual spend.
  • There have been some quality control issues, including leaking and breaking filters.

This BPA-free filter is the most capable bath faucet water filter that we’ve reviewed, removing more contaminants than its closest competitors and boasting a long filter life of 12-18 months.

Key Features:

  • GAC filtration – The Crystal Quest Bath Ball Filter uses a granular activated carbon filter cartridge to adsorb aesthetic contaminants.
  • Removes chlorine, chloramine, & more – This bath faucet-mounted water filter reduces chlorine and chloramine, helping to prevent skin and hair issues caused by bathing in chlorinated water. It also reduces disinfection byproducts, some heavy metals, iron, pesticides, and hydrogen sulfide.
  • 12-18-month filter life – The carbon media lasts 2,000 to 2,500 gallons, or around 12-18 months, before a filterf replacement is needed.

Best For:

Anyone who specifically wants to filter their bath water and needs a dedicated faucet water filter for the job.


  • The Crystal Quest Bath Ball Filter has a unique design that enables it to be installed at your bath tub’s faucet. A conventional faucet filter would be tricky (or likely impossible) to install on a bath faucet, but the Crystal Quest filter hangs from the faucet, so is compatible with most bath taps.
  • Installing the filter is super simple and takes less than 5 minutes, with no tools required. Just position the filter underneath your faucet, then run hot tap water through it for 2-3 minutes to activate it.
  • Considering this filter is for your bath water, not drinking water, we’re impressed with just how many contaminants it removes. Plus, it also balances pH, which (according to Crystal Quest) provides additional skin and hair health benefits.
  • The super long filter life is another obvious benefit. You’ll only need to buy a new filter once a year at most, and when the time comes, the filter is easy to replace – just remove the old filter media and put the new media in its place.


  • Hard water might cause scale damage inside the filter housing.
  • A few customers said that the filter leaked a lot of charcoal into the tub while they were flushing it with hot water.

This 6-stage filter has a 2,000-gallon lifespan – that’s 20x the 100-gallon expected lifespan for our top pick PUR filter. Crystal Quest estimates it should last around 6-12 months with regular use.

Key Features:

  • Long filter life – The Crystal Quest® Faucet Mount Filter has one of the longest filter lives of all the conventional faucet-mount filters we’ve reviewed. At best, you’ll only have to buy one filter replacement per year.
  • 6-stage filtration – There are 6 stages of filtration within this faucet water filter cartridge:
    1. A 5-micron filtration pad that removes sand, dust, and other debris. This pad is washable and removable for convenience
    2. A pre-filter pad, which removes suspended particles, sediment, and cysts larger than 1 micron
    3. Two types of redox alloy media, which reduce heavy metals like iron, copper, and mercury, and inhibit microorganism growth
    4. A granular activated carbon filter, which reduces chlorine, lead, pesticides, and disinfection byproducts
    5. An ion exchange resin, which reduces copper, lead, and aluminum
    6. A post-filter 1-micron pad, which further reduces sediment
  • Removes chlorine, lead, sediment, & more – According to the manufacturer, the filter can remove chlorine, silt, cysts like giardia and cryptosporidium, pesticides, TTHMs, heavy metals like copper, lead, and aluminum, and more.

Best For:

Folks who want a long-lasting, low-commitment faucet-mounted filter cartridge that has a long lifespan and removes an impressive list of contaminants.


  • The long 6-12-month lifespan means you can avoid the hassle and high spend of regular maintenance – ideal if you want a filter you can install and forget about for at least half a year.
  • If we’re to take the manufacturer’s performance claims at face value, this filter can reduce an impressive selection of contaminants. No other faucet-mounted filter on this list can remove cysts.
  • It’s good to see six stages of filtration packed into a single cartridge. The more media types a filter cartridge has, the greater the opportunity to tackle a broader range of contaminants.


  • There’s no evidence to support this filter’s performance. We’d love to see this to validate some of Crystal Quests’s claims, especially the claims about cyst removal.
  • The 0.30 GPM flow rate is around 0.2 GPM slower than the rated flow of most other faucet filters we’ve reviewed.

🧾 Faucet Water Filter Buyer’s Guide

Want to know how to choose the best faucet-mounted drinking water filter for your situation? You’ll find all the information you need to make an informed purchase in this buyer’s guide.

🤔 What is a Kitchen Faucet Water Filter?

A faucet-mounted water filter is a point of use (POU) water filtration system that provides clean, filtered drinking water from your kitchen faucet.

The filter is installed as an extension of your faucet. When the faucet is switched on, drinking water flows through the filter and out of the spout.

See Also: Gravity Water Filters

⚙️ How Do Tap Faucet Water Filters Work?

how faucet water filters work

Tap water faucet filters work by filtering the water with one or several filter media.

Water flows through the filter cartridge, and contaminants like chlorine, heavy metals, and pesticides are trapped in the layers of filtration media.

The exact method of filtration depends on the type of media used. Most faucet-mounted filters are carbon-based and remove contaminants with adsorption. Some combine carbon with other filter media, including KDF, a sediment filtering media, and an ion exchange resin.

Water molecules are small enough to travel through the filter media without interruption, so the water that leaves the filter is cleaner and purer.

💡 Benefits of Faucet Water Filters

Some of the key benefits of faucet filters are:

  • Remove harmful contaminants & impurities – At the very least, a faucet-mounted filter can remove chlorine, improving tap water taste and quality. The best filters can remove many more contaminants, including lead, bacteria, rust, dirt, heavy metals, and chloramine.
  • Improve the taste and odor of tap water – A kitchen faucet water filter can remove the chemicals and contaminants that give drinking water an unpleasant taste, eliminating poor “swimming pool” tastes and odors. Some facet filters can also reduce rust and hydrogen sulfide, which can give water a distinctive taste, odor, and discoloration.
  • Choose between filtered and unfiltered water – Faucet water filters have a diverter valve, so you can divert water through the filter or use your faucet as normal. That means you only need to filter your water for drinking, helping to extend the filter life.
tap water filter
  • Easy to install – Anyone can install a faucet-mount water filter in less than 5 minutes. You don’t need to be an expert, and you don’t need to hire a plumber or handyman
  • Space-saving – Unlike countertop water filters, which take up valuable counter space, faucet water filters are small and compact. They’re simply an extension of your kitchen faucet, so they take up no side space at all.
  • Cost-effective – The average cost of a faucet water filter is $20-$45, making it the cheapest filter type currently available. Replacement filters are affordable, and for most systems, you’ll only need to buy two or three new filters a year, keeping your ongoing costs low.

💭 6 Things to Consider When Buying a Faucet Water Filter

A drinking water filter is a big investment that will last for many years, so you want to make sure you make the right decision for your requirements.

Here are the 10 things you should consider when buying a faucet water filter:

Your Budget

First, determine how much you can afford to spend on a faucet water filter.

The good news is that faucet filters are very affordable, costing less than $50 upfront. The annual spend for these filters is usually within $100.

Price is determined by quality, longevity, and performance. If you can afford to spend at least $35-$45 upfront on a faucet water filter, we recommend doing so. From our research, the pricier faucet filters remove more contaminants and last longer, so your ongoing maintenance costs are lower.

Your Installation and Maintenance Preferences

Also consider your installation and maintenance preferences for a faucet water filter.

Installation and maintenance of a faucet-mounted filter are very simple – good news if you hate DIY. The installation process simply involves attaching the filter to the end of your faucet, with no tools required.

Maintenance is easy, too – just remove the old filter cartridge and slot the filter replacement in its place. No need to detach the filter housing from your faucet.

If you want to keep maintenance to a minimum, look for a faucet water filter with a longer lifespan of 6-12 months.

pur faucet mount filters and replacement cartridges

Filter Testing/ Certifications

If you want to be certain that a faucet water filter can remove contaminants as claimed by the manufacturer, look for third-party testing and/or certifications.

The best faucet water filtration systems are certified by either NSF International. NSF certifications tell a customer that the product they’re buying has been third-party approved for its performance abilities.

Some of the NSF certifications to look for are:

  • NSF 42 – For the reduction of aesthetic contaminants like chlorine
  • NSF 53 – For the reduction of contaminants with health effects, like lead
  • NSF 401 – For the reduction of emerging contaminants, like BPA, PFAS, and pharmaceuticals

Some faucet water filters don’t have official NSF certifications but have been third-party tested by a trusted laboratory to NSF Standards. In our opinion, this gives the same assurance of performance as an official certification.

What is NSF Certified

Your Contaminant Removal Preferences

Make sure to think about the specific drinking water contaminants that you want to remove from your water.

If you don’t already know, conduct a water quality test or review your water utility’s most recent Water Quality Report to find out what your water contains.

Most faucet water filters can reduce chlorine and some heavy metals. Only a few can address fluoride, VOCs, PFAS, and other more challenging-to-remove contaminants, so check a filter’s performance data carefully if you want to address something specific in your drinking water.

Note: While faucet water filters can remove most of the more common tap water contaminants, they’re not the best we’re reviewed in terms of contaminant removal. If you want to remove as many contaminants as possible from your water, consider a reverse osmosis water filter. Read our best reverse osmosis systems guide here.

Filter Material

When you’re searching for faucet water filters, keep in mind the materials that are used in the filter design.

Most faucet water filters are made from BPA-free plastic. Plastic filters have the advantage of being lightweight and affordable, but they’re more susceptible to cracking and leaking under high water pressure.

A few faucet water filters are made from stainless steel, which is more durable, but is susceptible to rusting and is more expensive upfront.

You can learn about the quality and durability of a faucet filter’s materials by checking customer reviews.

Manufacturer Support and Product Warranty

Finally, make sure to buy from a trusted manufacturer with a great reputation for customer service – and check that the filter has some form of warranty, too.

Most faucet water filters have a warranty of 1 year, and some have a shorter (usually 30-60 days) money-back guarantee.

A warranty covers your purchase if the filter arrives faulty or becomes damaged due to normal use within the warranty period.

The Competition

There are a few products we previously featured in this list, that no longer make the cut:

🙋 Frequently Asked Questions

What is the best filter for faucet?

The best filter for a kitchen faucet depends on your filtered water needs. If you want to remove as many contaminants as possible, we recommend the PUR Plus Faucet Filtration System, which removes 70+ contaminants. If you want a faucet water filter with the longest filter lifespan, go for the Crystal Quest Faucet Mount Water Filter System, which lasts 6-12 months.

Which faucet water filter removes the most contaminants?

In our research, we found that the PUR Plus Faucet Filtration System removes the most contaminants of all faucet water filters. This filter can remove more than 70 contaminants from a tap water supply, including chemicals, heavy metals, VOCs, and disinfection byproducts, and has been NSF certified for its contaminant removal abilities.

Do faucet filters really work?

Yes, faucet filters really work to produce quality filtered water. These filters use carbon and other filter media to pull contaminants out of drinking water as it flows from the faucet. Make sure to buy from a trusted, reputable manufacturer, and check customer reviews before you spend your money.

Are faucet water filters worth it?

Yes, faucet water filters are worth it for anyone looking for a convenient, cost-effective solution to filter their tap water supply. However, these filters aren’t the best choice for anyone who wants to remove as many drinking water contaminants as possible, or anyone who wants to filter their entire home’s water supply.

How easy is it to install a faucet water system?

Installing a faucet water system is easy and doesn’t require any complex DIY or tools. Simply connect the filter to your faucet, using the provided adapters if necessary. Most people can install a faucet water filtration system and enjoy filtered water in less than 5 minutes.

Can you install a faucet water filter on any faucet?

You can install a faucet filter on most standard kitchen sink faucets. However, these filters aren’t designed for faucets with sensors, spray-style faucets, or any faucets with a unique design.

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