Faucet Water Filters: Efficient Solutions for Clean Drinking

Faucet water filters have become an essential household item for many people, providing a convenient and cost-effective solution to improve water quality. They are easy to install, directly attaching to a faucet and removing contaminants such as lead, mercury, pesticides, and other harmful substances in a matter of seconds. With a variety of options available on the market today, choosing the right faucet water filter can be a challenge, but understanding their benefits and features can help you make an informed decision.

One of the top-rated faucet water filters is the PUR Advanced, which is ANSI/NSF certified for 71 contaminants including lead and mercury while also targeting some emerging compounds. Another popular choice is the Brita Faucet Mount Water Filtration System, known for its ability to remove 99 percent of lead from the water and provide an estimated four months of use before requiring a filter replacement. For those on a budget, the Waterdrop Faucet Mount Water Filtration System is a reliable option that effectively filters out most contaminants.

When selecting a faucet water filter, it’s essential to consider your specific needs, such as the types and levels of contaminants in your water, your budget, and the ease of installation and maintenance. By doing so, you’ll be on your way to enjoying cleaner, safer, and better-tasting water straight from your faucet.

Why Use a Faucet Water Filter

Improving Water Quality

Faucet water filters can significantly enhance the quality of your tap water. Although tap water is generally regarded as safe for consumption in most developed countries, it sometimes contains trace levels of undesirable substances that can affect its quality, taste, and smell. By using a faucet-mounted water filter, you can effectively reduce the presence of heavy metals, chlorine, and other impurities that may be present in your drinking water.

Eliminating Contaminants

One of the primary benefits of a faucet water filter is its ability to remove various contaminants from your tap water. In particular, faucet-mounted filters are often designed to reduce or remove:

  • Heavy metals, such as lead and mercury
  • Pesticides and industrial chemicals
  • Pharmaceuticals and other emerging compounds
  • Bacteria and other pathogens

It’s essential to select a filter specifically designed for the contaminants you want to address, as not all filters are equally effective against all types of impurities. Keep in mind that while no filter is 100% effective in removing every contaminant, a high-quality faucet filter can significantly reduce the levels of harmful substances in your water.

Enhancing Taste and Odor

In addition to improving water quality and eliminating contaminants, faucet water filters can also help enhance the taste and odor of your water. Unpleasant tastes and smells in tap water are often the result of chlorine, sulfur, or other impurities. A good faucet filter can remove these impurities, leaving your water tasting and smelling better.

In conclusion, a faucet water filter can be a valuable addition to your home, providing you with cleaner, better-tasting water straight from your tap. Just make sure to choose a filter that targets the specific contaminants you want to remove and remember to replace the filter cartridge as needed to ensure optimal performance.

Types of Faucet Water Filters


Countertop water filters are a popular choice for those who want a simple installation process and portability. These filters typically connect directly to your faucet with a hose and do not require any additional plumbing. The filtration system is housed within a container that sits directly on your countertop. Some benefits of countertop water filters include:

  • Easy installation
  • Portability
  • No need for plumbing modifications

However, keep in mind that countertop filters may occupy some space on your kitchen counter and may not be as aesthetically pleasing as other options.


Under-sink water filters are installed under your kitchen sink and connect directly to your cold water line. Unlike countertop filters, these require some plumbing work, but they have a higher filtration capacity and quicker water flow rate. Some advantages of under-sink water filters include:

  • Out of sight, ensuring a clutter-free countertop
  • Higher filtration capacity
  • Faster flow rate

However, note that under-sink filters may need custom plumbing, which could impact the installation cost and time.


Faucet-mounted water filters attach directly onto your existing faucet, providing an easy and convenient way to filter your water. These filters are easy to install and do not require any additional plumbing. Some benefits of faucet-mounted water filters are:

  • Affordable
  • Simple installation
  • Easy to change filters

Keep in mind that faucet-mounted filters are visible on your faucet but provide an economical yet effective water filtration solution.

Filtration Technologies

Activated Carbon

Activated carbon is a widely used filtration technology in faucet water filters. It is a highly porous material made from natural sources like coconut shells, wood, and coal. This material has an extensive surface area, allowing it to effectively adsorb various contaminants present in water.

Faucet water filters utilizing activated carbon can reduce or remove a wide variety of impurities, such as chlorine, volatile organic compounds (VOCs), sediment, and bad smells and taste. The activated carbon filter’s ability to capture contaminants is primarily due to its adsorption process, where contaminants are attracted and trapped on the carbon’s surface.

However, activated carbon filters may not be as effective in removing minerals, salts, viruses, and some heavy metals like lead and arsenic.

Ion Exchange

Ion exchange is another popular filtration technology used in faucet water filters. This process involves exchanging unwanted ions in water with different ions from a resin-based medium. By doing so, the filter effectively removes targeted contaminants like heavy metals, nitrates, and certain minerals.

Two main types of ion exchange resins are commonly used in water filters:

  • Cation exchange resins: These resins remove positively charged ions such as calcium, magnesium, and heavy metals like lead and mercury.
  • Anion exchange resins: These resins remove negatively charged ions such as nitrates, bicarbonates, and sulfates.

Ion exchange filters typically require a pre-filter, like an activated carbon filter, to reduce or remove other contaminants like chlorine or sediment. Ion exchange is particularly valuable in treating hard water, as it can remove calcium and magnesium ions that cause water hardness.

In summary, faucet water filters usually rely on technologies like activated carbon and ion exchange to provide safer and better-tasting water. Activated carbon filters are efficient in removing a wide range of contaminants, while ion exchange filtration targets specific ions like heavy metals or minerals that cause water hardness. Understanding the individual strengths of these technologies can help you choose the right faucet water filter for your specific needs.

Filter Efficiency

Filter Lifespan

The lifespan of a faucet water filter cartridge is an essential factor to consider, as it determines how effective the filter is at removing contaminants over time. Most filter cartridges have a lifespan of 2-4 months, depending on the volume of water being filtered and the impurities in the water source. Some brands like the Brita Faucet Mount Water Filtration System last about four months before requiring a filter replacement, while others like the Waterdrop Faucet Mount Water Filtration System may have varying lifespans.

Filters that effectively remove sediment, rust, arsenic, asbestos, and other contaminants will have a longer lifespan, ensuring better water quality and less frequent cartridge replacements.

Filter Replacement Indicators

An indicator light or other types of replacement indicators can be helpful in determining when the filter cartridge needs to be replaced. Some faucet water filters, such as the PUR Plus Faucet Filtration System, feature built-in indicators that notify users when it’s time to change the filter cartridge.

Keep an eye out for filter systems that provide clear and easy-to-understand indicators, ensuring you don’t miss any necessary replacements, thus maintaining optimal water quality.

Flow Rate

Flow rate is an important aspect of filter efficiency, as it determines how quickly the water is filtered through the system. A filter with a higher flow rate will provide better convenience, as it can provide more water in less time. As mentioned earlier, under-sink water filters usually offer a greater flow rate compared to faucet-mounted systems, but come at a higher cost and may require custom plumbing.

When selecting a faucet water filter, consider factors such as flow rate and filter lifespan to find a suitable option for your needs. Remember to prioritize the effective removal of contaminants like sediment, rust, arsenic, asbestos, and turbidity to ensure safe and clean drinking water.

Top Faucet Water Filter Brands

In this section, we will discuss some of the top faucet water filter brands, including Brita, Culligan, Waterdrop, Pur Plus, and Engdenton. These companies offer reliable, efficient, and cost-effective solutions for improving the quality of your tap water. For an in-depth review of the top faucet water filters, please see our full review article here.


Brita is a well-known brand in the water filtration industry. Their Faucet Mount Water Filtration System stands out due to its ability to remove 99% of lead from water and has a lifespan of about four months before requiring a new filter cartridge.

  • Removes 99% of lead
  • Filter life: 4 months


Culligan offers a variety of water filtration systems, including under-sink and faucet-mounted options. Their FM-15A Faucet Mount Filter provides a compact and easy-to-install solution for reducing contaminants like lead, chlorine, and sediment from tap water.

  • Compact and easy to install
  • Reduces lead, chlorine, and sediment


Waterdrop is an NSF Certified Water Faucet Filtration System brand that offers budget-friendly options for filtering out most contaminants. Their systems provide efficient filtration without breaking the bank.

  • NSF Certified
  • Budget-friendly

Pur Plus

The Pur Plus Faucet Filtration System is considered the best faucet water filter in 2023 according to various sources. It is ANSI/NSF certified for 71 contaminants and has a filter life of up to 400 gallons or about one year.

  • ANSI/NSF certified for 71 contaminants
  • Filter life: 400 gallons or 1 year

Certifications and Standards

When selecting a faucet water filter, it’s important to consider certifications and standards that ensure the product’s effectiveness in removing contaminants from water. One of the most reputable organizations that evaluates and certifies water filters is NSF International, in collaboration with the American National Standards Institute (ANSI).

There are several key NSF/ANSI standards that relate to faucet water filters:

  • NSF/ANSI 42: This standard covers filters that primarily improve the taste and odor of water by reducing chlorine, chloramine, and particulates.
  • NSF/ANSI 53: Faucet water filters that meet this standard are able to reduce a wide range of contaminants, including lead and some microbiological contaminants. This is crucial for ensuring water safety.

To verify if a faucet water filter is NSF-certified, you can:

  1. Check the product label for an NSF logo or certification information.
  2. Search for the product in the NSF online database.

It’s essential to know which contaminants your water filter is certified to protect against, especially if there’s a specific contaminant you’re concerned about. You can find this information in your local water quality report, also known as a Consumer Confidence Report, which is provided annually by your water supplier.

In addition to NSF/ANSI standards, other certifications, like those from the Water Quality Association (WQA), can also provide assurance of a water filter’s effectiveness.

By choosing a faucet water filter with the appropriate certifications and standards, you can trust that your drinking water is free from harmful contaminants, ensuring the safety and well-being of you and your family.

Style and Aesthetic

Colors and Finishes

When choosing a faucet water filter, consider the colors and finishes available to match your kitchen decor. Some popular options include:

  • Stainless steel: Offers a clean, modern look and is often resistant to water spots and fingerprints.
  • Chrome: Provides a sleek, high-shine finish that works well with many kitchen styles.
  • Black: Adds a bold, contemporary touch to your space.
  • White: Offers a classic, clean look that fits well in a variety of spaces.

Horizontal or Vertical

Faucet water filters come in two main orientations: horizontal and vertical.

  • Horizontal filters: These designs typically have a lower profile, making them a good option for spaces with limited clearance or tight sink areas. They’re mounted horizontally on your faucet, typically at the end where the water comes out.
  • Vertical filters: These designs are mounted vertically on the side of your faucet, and the filter cartridge extends upward from the connection. They might take up more vertical space but are often easier to access when it’s time to change the filter.

Mist vs. Stream Delivery

Different faucet water filters may offer different water delivery options, such as mist or stream.

  • Mist delivery: This option provides a fine mist of filtered water, ideal for rinsing vegetables or quickly filling a glass. Filters with mist delivery often use less water and can extend the life of your filter cartridge (up to 500 gallons, depending on the filter).
  • Stream delivery: This option delivers a steady stream of filtered water, suitable for filling larger containers or pots. It may use larger volumes of water but is more efficient when you need a continuous flow.

It’s essential to consider the style and aesthetic of your faucet water filter, as well as the colors, finishes and features it offers. Keep your kitchen space, preferences, and specific needs in mind as you select the perfect filter for your home.

Environmental and Health Factors

Faucet water filters can have a significant impact on both environmental and health factors. One of the crucial aspects of a faucet filter is its ability to remove pollutants from tap water. The Environmental Working Group (EWG) states that water filters can help in improving the quality of home water by filtering out contaminants such as lead, chlorine, and pesticides.

These pollutants may cause various health issues, including an increased risk of cancer. Drinking purified water can contribute to overall wellness, especially for those with well water sources. Well water may contain a higher concentration of contaminants than municipal water, and the EPA recommends testing well water annually for potential risks.

Using a faucet water filter not only improves water quality but also reduces plastic waste by encouraging the use of reusable water containers. Many filters are designed to be BPA-free, resulting in a safer and eco-friendly choice compared to bottled water.

In addition, a high-pressure faucet water filter can provide fast filtration, ensuring access to clean water quickly. This is especially essential for households with busy schedules or in areas where water pressure is an issue.

Here are some factors to consider for a faucet water filter:

  • EPA recommendations: Look for filters that follow EPA guidelines and recommendations for removing contaminants from drinking water.
  • Contaminants removal: Choose a filter that effectively removes pollutants, including lead, chlorine, and pesticides to ensure health and wellness.
  • BPA-free: Select a BPA-free filter to reduce exposure to harmful chemicals found in some plastics.
  • High pressure: Consider a high-pressure filter for fast and efficient water filtration.

By considering these factors, you can select a faucet water filter that significantly improves water quality while positively impacting the environment and your health.

Additional Features and Tips

Kitchen Faucets and Compatibility

When selecting a faucet water filter, it’s essential to consider its compatibility with your existing kitchen faucet. Some filters are designed to fit standard faucets, while others might require specific adaptors or not fit at all. To ensure compatibility, you can:

  • Check the product specifications for compatibility information.
  • Look for filters that come with multiple adaptors to fit different types of faucets.

Dealing with High Pressure

High water pressure can affect the performance and durability of faucet water filters. A quality filter should be able to withstand high pressure without cracking or breaking. Engdenton, for example, features a stainless steel exterior designed to handle high water pressure. Some tips for dealing with high-pressure situations include:

  • Opting for a filter with a robust and durable exterior, such as stainless steel.
  • Ensuring the filter has a pressure rating that meets or exceeds your home’s water pressure.

Filter Performance for Flint, Michigan

Flint, Michigan, has been facing a water crisis since 2014, resulting in high levels of lead and other contaminants in the water supply. If you are a resident of Flint or a similar area, it’s crucial to select a faucet water filter that efficiently removes contaminants. PUR Plus Faucet Filtration System, for instance, has been tested to remove most contaminants. Homeowners in Flint should consider:

  • Filters with ANSI/NSF certifications, ensuring they meet strict quality and performance standards.
  • Filters that are proven to remove lead and other specific contaminants present in the local water supply.
  • Regularly check the filter’s performance and replace cartridges as recommended by the manufacturer.

Pricing and Promotions

When it comes to faucet water filters, there is a wide variety of brands and options available at different price points. Leading retailers such as Amazon offer a comprehensive selection that covers various budgets and needs, making it a popular choice for many shoppers.

Popular brands like PUR and Engdenton offer a range of faucet water filters that come with different features, capacities, and filtration capabilities. PUR, for example, is well-known for its Advanced faucet-mounted filter, which is ANSI/NSF certified for 71 contaminants. The price for this particular model is usually close to $42, with a four-pack replacement set costing around $40, covering approximately 400 gallons of filtered water.

Engdenton, on the other hand, has a stainless steel filter with a swiveling body, capable of filtering up to 320 gallons of water before requiring a filter change. The cost of Engdenton’s filter is usually between $40 and $60.

Promotions and special offers are often available for faucet water filters. It’s always a good idea to keep an eye on sites like Amazon, where deals and discounts are regularly posted, and you might even find coupons or limited-time sales events.

When comparing brands and models of faucet water filters, keep in mind the following factors that may influence the prices:

  • Filter capacity: Filters with a higher capacity for water filtration may cost more, but they may also last longer, requiring less frequent filter changes.
  • Certifications: Filters that are ANSI/NSF certified for specific contaminants may be more expensive, but they can offer greater peace of mind for water quality.
  • Material and design: The choice of materials (e.g., stainless steel vs. plastic), design (e.g., swivel vs. fixed), and overall build quality can influence the price of the product.

In summary, the pricing of faucet water filters is influenced by factors such as brand, capacity, certifications, and design. Monitoring promotions and special offers on platforms like Amazon can help you find a deal that fits your budget and requirements.

Frequently Asked Questions (FAQ) about Faucet Water Filters

Q1: What is a faucet water filter?
A: A faucet water filter is a device that you can attach directly to your tap to remove impurities and contaminants from the water. These devices work by directing the water flow through a filter cartridge which can trap and eliminate a wide variety of potential health hazards.

Q2: Why do I need a faucet water filter?
A: Tap water can contain a variety of contaminants such as heavy metals, chlorine, fluoride, pesticides, bacteria, and other pollutants. A faucet water filter can remove these contaminants to provide you with cleaner, safer drinking water.

Q3: How does a faucet water filter work?
A: Faucet water filters work by forcing tap water through a cartridge filter. This filter consists of layers designed to remove different types of contaminants. For example, activated charcoal can remove chlorine, while ceramic layers can trap bacteria and other microscopic particles.

Q4: How often should I replace my faucet water filter cartridge?
A: Replacement frequency depends on the specific brand and model of the filter, as well as your water usage. Generally, it’s recommended to replace the filter every 2-3 months, or after filtering 100-200 gallons of water. Always refer to the manufacturer’s instructions for specific recommendations.

Q5: Can a faucet water filter remove lead from the water?
A: Yes, many faucet water filters are capable of removing lead and other heavy metals from water. However, effectiveness can vary between models. Always check the specifications of the filter to ensure it meets your specific requirements.

Q6: Does a faucet water filter decrease water pressure?
A: Some users might notice a slight decrease in water pressure after installing a faucet water filter. This is because the water needs to pass through the filter before coming out of the faucet, which can slow down the flow.

Q7: Can I use a faucet water filter with any type of faucet?
A: Most faucet water filters are designed to fit standard faucets. However, they may not fit all types of faucets, particularly those that are uniquely shaped or sized. It’s essential to check the compatibility of a filter with your faucet type before purchasing.

Q8: Can a faucet water filter remove fluoride?
A: Not all faucet water filters can remove fluoride. If fluoride removal is important to you, ensure you choose a model specifically designed to remove fluoride.

Q9: Do faucet water filters remove beneficial minerals?
A: Most faucet water filters are designed to remove harmful contaminants without stripping water of beneficial minerals like calcium and magnesium. However, this depends on the specific model and type of filter used.

Q10: How do I install a faucet water filter?
A: Most faucet water filters can be easily installed without the need for any special tools. Typically, they come with adapters to fit various faucet types. The filter is generally screwed onto the end of the faucet after removing the existing aerator. Always follow the manufacturer’s instructions for specific installation guidelines.

Q11: Are faucet water filters expensive?
A: The cost of faucet water filters varies widely depending on the brand, model, and the types of contaminants they can remove. However, in general, they are considered a cost-effective solution for improving water quality.

Q12: How do I know when to change the filter?
A: Some models have a built-in indicator that alerts you when it’s time to replace the filter. If not, you should follow the manufacturer’s recommended replacement schedule, which is typically based on the amount of water filtered.