Homes that go through over a few gallons of water for drinking every day will most likely see the benefit of getting an under-sink filtration system. Unlike water filter pitchers, under-sink filters can give a continuous stream of water whenever you need it, but there are also other options, such as countertop water filters. In this article, we share the best water filters for your kitchen sink, along with other possible options that may be more suitable for your needs if under-sink filters aren’t your priority.
Table of Contents
What is Water Quality?
Before we help you select the right faucet for your kitchen sink, it’s important to understand water quality and what it means for your family’s safety. Specific contaminants can be found in water, and its quality will determine which ones will end up in your home’s water supply. The best faucet water filters will help to reduce the presence of these contaminants while also lowering their levels.
Different filters will target different substances, so it’s essential to get a water filter that can handle various water sources to ensure that you get clean, safe, and great-tasting water.
Who Can Benefit from Water Filters?
If your home goes through over 2 or 3 gallons of drinking water every day, then using under-sink water filters may be a better choice than pitcher filters. This is because under-sink systems can deliver filtered water on demand without the need to wait for the filtration process to take place. An under-sink filter comes with more capacity and a longer lifespan compared to pitcher filters; they can also thoroughly remove any kind of bad taste from water.
While installing one of these filters will need hardware mounting and basic plumbing, the job can make easier if your sink has an existing hole for a separate faucet. But if it doesn’t, you will need to get rid of one of your built-in faucets, which can be seen around your steel sinks or synthetic-stone sinks.
The Best Water Filters for Your Kitchen Sink
Below are our top choices for the best water filters for kitchen sinks, but we’ve also included a bonus option for anyone who may not be able to install one for their sink.
1. iSpring RCC7
Highlights:
- Known to be a quality, efficient, and affordable reverse osmosis filter
- With a 5-stage filtration process that provides exceptional results and removes 100% of many contaminants
- Many people agree that it provides a neutral, odorless, and crisp taste
- Less expensive compared to other models while removing more contaminants
- An under-sink model with exceptional filtration thanks to its 3-stage filters
If you’re looking to invest in reverse osmosis filters, then you can’t go wrong with the iSpring RCC7 — this under-sink model not only offers better-tasting water, but it also comes with a competitive price. While this reverse osmosis system may come with a $50 annual cost, it’s still between $10 to $100 less expensive each year compared to similar models that offer the same contaminant removal. Moreover, its up-front costs are still worth it in the long run, especially against pitcher-style filters, which can’t remove contaminants on the same level.
Standard installation and maintenance requirements come with this model, but you can also take a DIY approach if you want, although this could take a few hours. Just be sure to buy replacement filters once every 6 months; this may sound like a hefty amount, but you won’t regret it because of the pristine water quality it can offer.
2. A.O. Smith AO-US-200
Highlights:
- Comes with ANS/NSF (National Sanitation Foundation) certifications, which means it meets both safety and quality standards
- Features all-metal construction, various filter technologies, compression fittings, and a compact size
- With an advanced filtration system that reduces as much as 99% of 78 dangerous contaminants
- Provides access to clean and filtered water that can be shared by 4 people or more, making it the perfect household solution
- These filters can last 6 months or 500 gallons and come with a limited 1-year warranty
The A.O. Smith AO-US-200, also known as the Clean Water Filter Dual-Stage Carbon Block Under Sink Water Filtration System, is a popular choice due to its 2-stage filtration system. This advanced and powerful water filter can catch as many as 78 contaminants, including chlorine, mercury, lead, asbestos, pharmaceuticals, pesticides, and more. The actual filter itself is also 100% lead-free and features a brushed-nickel faucet; it also comes with all the required parts needed, so there’s no need for plumbing.
The best part about this option is that it’s often on sale for about the same price as a set of replacement filters, so be sure to grab them while they’re still available!
3. Crystal Quest Faucet Mount Water Filter System
Highlights:
- Comes with a huge purification capacity but won’t break the bank
- Offers a 6-stage water filtration system and can purify as much as 2,000 gallons of water
- Can catch plenty of different contaminants such as VOCs, chlorine, heavy metals, and more
- With a space-saving design thanks to its sleek and compact size, you can seamlessly integrate it into your kitchen
- Made using BPA-free and eco-friendly materials that support a healthier lifestyle while helping to sustain the environment
Those who want a solid faucet water filter for the sinks around their homes will benefit from installing the Crystal Quest Faucet Mount Water Filter System. With its 6-stage filtration system, you’ll be surprised to know that it can filter out as many as 2,000 gallons of water, depending on your home’s water quality. This filter consists of ion exchange stages, activated carbon, and micron filter pads, which help to remove all kinds of contaminants.
Despite these great benefits, conclusive performance data hasn’t been released yet, so there’s no way to tell if they can truly deliver on these promises. Even so, many users agree that this option is still the best way to go if you want a long-lasting solution.
While that all sounds quite impressive, Crystal Quest hasn’t made its performance data available, so it’s not included in the top three. We chose to still include it as an honorable mention because from a technical standpoint the stages of the filter consist of proven technologies and because of its massive purification capacity.
4. PUR Faucet Mount Filter System
Highlights:
- Removes more than 70 contaminants, along with unpleasant odors, from your tap water
- Certified to meet NSF/ANSI standards and can be attached directly to standard faucets
- This filter system will last for around 3 months while providing affordability
- Can be used to switch between filtered and unfiltered water
- Equipped with a filter replacement indicator, and is made from light plastic material
With the ability to filter through a wide range of contaminants such as sediment, chlorine, mercury, and traces of lead, the PUR FM-3333B Faucet Mount Filter System is among our top choices. Built to provide serious filtration, this model uses a 2-stage filtration process to handle all kinds of contaminants, including chlorine & chlorine by-products (THMs), volatile organic compounds (VOCs), microplastics and sediment, pesticides and herbicides, pharmaceutical residues, as well as bad odors and tastes. This isn’t just another filter because it’s NSF-certified to fight against 70 chemicals and physical contaminants and was also awarded the Gold Seal certification from the WQA (Water Quality Association).
The PUR system also provides ease of use since it can be attached directly to any standard faucet without the need for tools, while its compact size won’t crowd the area around your sink. The only thing to keep in mind is the plastic housing it comes in, which isn’t as durable as options made from stainless steel.
5. Aquasana Claryum Direct Connect
Highlights:
- Provides an easy DIY under-sink installation that can be used even without a dedicated faucet
- Offers clean and healthy filtration that can remove up to 99% of 77 different contaminants
- Retains naturally occurring minerals such as magnesium, calcium, and potassium
- Has been designed with the environment in mind — this single filter can replace over 6,250 plastic water bottles
- With all parts included to ensure quick and easy installation, including a dual-port adapter
Using the Aquasana Claryum Direct Connect Filter is the perfect solution for anyone who may not have a separate mounting hole for filters. This is because it connects directly to your cold water line while sending filtered water to your main faucet, so there’s no need to drill a hole or make any adjustments to your space. With its carbon filter, you can remove up to 99% of many contaminants such as pharmaceuticals, pesticides, herbicides, asbestos, mercury, PFAS, lead, and more!
Because it’s so easy to install, this option is one of the most well-liked compared to others in this list — be sure to check it out below before it’s sold out!
6. Aquasana AQ-5300+ Max Flow
Highlights:
- Can instantly transform your tap water into clean water while reducing 99% of 78 contaminants
- Comes with a high flow rate, powering through half a gallon of water every minute
- Known for being long-lasting and cost-efficient, it can last for 800 gallons or 6 months before it needs replacement
- Offers an easy way to replace your filter by simply twisting off the housing — no need to disconnect water lines or hoses
- Includes the first set of filters along with all the parts needed for installation; just read the manual on how to get started.
When you want to quickly turn your tap water into drinkable water, just install the Aquasana AQ-5300+ Max Flow to reduce as much as 99% of various contaminants. This model comes with all the great features you might find in standard water filters, and it has a prefilter to help separate rusty sediment. Moreover, it has the same certifications as the A.O. Smith AO-US-200 above, but with a higher flow rate and a bigger capacity, making it a good choice for big families.
It’s strong enough to clear water of PFOS, PFOA, VOC, mercury, lead, chloramine, and chlorine. Thanks to its prefilter, this model can catch sediment and rust that may be in your water supply, helping to stop clogs in the system. However, the Aquasana AQ-5300+ Max Flow is also a lot bigger than the others in this list, and it costs more to replace all 3 filters.
7. Culligan FM15A Faucet Filter
Highlights:
- Provides a powerful purification solution that’s great for anyone looking for a dependable filter
- Utilizes carbon block filtration to reduce and remove the most common municipal water pollutants
- Gives the whole family great-tasting and visibly clean water that’s safe for cooking, drinking, and more
- Has a filter life of 200 gallons or up to 2 months, depending on water quality and usage
- Includes adapters that will work well with all standard sink nozzles and is easy to install
If you’re looking for an option that gives you strong purification along with carbon block filtration, then the Culligan FM15A Faucet Filter is the best choice for your home. Able to remove contaminants such as VOCs, lead, and chlorine, it can also reduce particulates class I, azine, and lindane from your water. Many consumers trust this model since its carbon block filtration has been certified by the International Association of Plumbing and Mechanical Officials (IAPMO).
This great filter is simple enough to use and can be installed in both left and right-hand configurations. The only thing you may need to pay attention to is that its filters need to be replaced once every two months, which can be costly.
8. BONUS: ZeroWater 10-Cup 5-Stage Pitcher
Highlights:
- This 10-Cup 5-Stage Ready-Pour Water Filter Pitcher Dispenser has an indicator that lets you check on dissolved solids
- Comes with a 5-Stage Ion Exchange Filter that removes a wide variety of dissolved solids for pure tasting water every time
- Also IAPMO Certified and is BPA-Free, which means that the whole family can enjoy safe and clean drinking water
- Certified to reduce mercury, chromium, and lead; it can also dissolve organic and inorganic materials
- More hydration and less plastic since it can save as many as 110 single-use plastic bottles or as many as 660 bottles every year
With the ZeroWater 10-Cup 5-Stage Filter, you can rely on getting fresh and clean water every day, thanks to its robust ability to eliminate a wide range of contaminants. It’s also powerful enough to reduce the amount of minerals, metals, ions, and salts in the water, which means you can enjoy high-quality and pure drinking water. Once installed — it only takes 10 minutes — you simply need to wash and screw on the filter and watch it work some magic.
However, the only concern with this option is that despite its filtration capabilities, the water taste it delivers is something similar to distilled water. While this might be fine with some people, not everyone will appreciate the light and neutral taste it produces. The ongoing costs for this model can also range from $50 to $400, depending on how much water you need.
Do You Need Water Filters in Your Home?
The answer to this question is completely up to you since only you know your water needs. Throughout the United States, public water supplies are regulated under the Clean Water Act and are held to strict quality standards, but not all kinds of contaminants are regulated. As such, they can enter water sources once they leave the treatment plant — this can occur through leaky pipes or by coming out of these pipes.
To find out exactly what’s inside a supplier’s water once it leaves their plant, it’s imperative to check their EPA-mandated Consumer Confidence Report, which can be found online. However, potential contamination from other sources can’t be determined 100% of the time, and the only way to be sure is to pay for tests in your local water-quality laboratory. The rule of thumb is to pay attention to how old your home or community is; homes that have been built before 1986 will often come with lead pipes, solder, and fixtures that don’t meet today’s codes.
An aging home also brings a higher chance of getting a legacy groundwater contamination from before regulations were placed, which can put your home at an even bigger risk. This is especially true if your house’s underground plumbing has also become degraded after years of use.
How to Pick the Right Water Filter
Below is our guide to choosing the best under-sink filter for your needs; these use cartridge filters and may take up a bit of room, but they are typically easy to install and maintain. These will often come with adsorbent materials such as activated carbon and ion-exchange resin, similar to those you’ll find in pitcher filters. Most options will be fitted to a separate faucet, so you’ll likely need a mounting hole within your countertop.
We won’t really cover reverse-osmosis systems, faucet-mounted filters, or dispensers and pitchers, but this should give you an idea of what to look for.
- To make sure that you only get quality filters, it’s important to pick ones that are certified to the industry standards of ANSI/NSF. The American National Standards Institute and NSF International are non-profit and private organizations that establish high-quality standards. They test protocols for various products, such as water filters, and have certifying labs for both NSF International and the Water Quality Association (WQA).
- Lead, chlorine, and VOC certification are particularly important since chlorine is often the culprit behind bad-tasting water. Luckily, most water filters are certified for it. On the other hand, lead certification can be harder to find on filters since it reduces lead-rich solutions by 99% or more. Moreover, VOC certification can also be challenging since these filters eliminate over 50 organic compounds, including industrial precursors and common biocides. As such, not all filters will come with these certifications, so be sure to focus on ones that do have these certifications for superior performance.
- When it comes to costs, make sure to take into consideration the price for the entire system’s upfront costs as well as the ongoing costs to have the filters replaced. While there isn’t a set price for the best water filters, up-front costs can range between $100 to $1,250, while filters can cost anywhere from $60 to $300.
- It’s also important to look for reviews online from users who have already purchased the particular model you’re after. Some people may even share their experiences of owning under-sink water filters; this could help you make an informed decision after hearing what they have to say about that model, and whether they had difficulties using it.
- Filters are mostly plumbed into your cold-water feed line, so if a hose or connector breaks, water can escape until your shut-off valve is closed. As such, it can take hours or days to notice if there are any problems, which can lead to serious water damage. To give you some peace of mind, be sure to install a leak detector.
Conclusion
Now that you have all the best options available to you when it comes to choosing the best water filters for your kitchen sink, you can follow our guide to help you get the right solution for your home and your needs. Thanks to these great filtration systems, you never have to buy bottled water again or think about how to get water treatment for your kitchen sinks. Compared to the Brita Basic, most of the options above come at an affordable price and offer a long-term solution to getting higher water quality, so be sure to check out the links above.
Sources
- Kitchen Accessory Buying Guides
- Kitchen Appliance Buying Guides
- Kitchen Cookbook Buying Guides
- Kitchen Cookware Buying Guides
- Kitchen Pantry Food Buying Guides
- Does Food Go Bad Articles
- Food Comparison Articles
- Foods That Start With Letter Articles
- How Long Can Food Sit Out Articles
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- How To Reheat Food Articles
- How To Soak Food Articles
- Popular Foods Articles
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