The 10 Best Under Sink Water Filters

We spent 47 hours on research, videography, and editing, to review the top options for this wiki. When it comes to the taste and safety of your drinking water, you can’t always depend on your local waste treatment plant to remove every contaminant before it enters your home. Give yourself and your family the upper hand with one of these under sink filters. Many offer multi-stage processes designed to remove a variety of impurities, including lead, mercury, and chlorine. When users buy our independently chosen editorial picks, we may earn commissions to support our work.

10. EcoSoft 3-Stage

Ditch the water bottle for a more environmentally-friendly alternative, like the EcoSoft 3-Stage. Its compact design saves you precious space under your sink, while the German-engineered Ecomix technology works to remove hardness and unpleasant flavors from your tap water.

  • Also helps reduce salinity
  • Lightweight at only 7 pounds
  • Plastic fittings are flimsy

Brand Ecosoft
Weight 7 pounds
Rating 4.0 / 5.0

9. Blu Logic Drinktop

The commercial-grade sediment, pre-carbon, and post-carbon filters on the Blu Logic Drinktop are secured using pivoting mounts and a simple twist-and-pull action, which allow for the effortless replacement of its components when they’re installed in tight spaces.

  • Price is very reasonable
  • Elegant and stylish looking
  • Not as durable as the competition

Brand BLU
Model blu-drinktop
Weight 6.5 pounds
Rating 4.0 / 5.0

8. Woder 10K-GenII

Engineered to eliminate the presence of heavy metals and volatile chemicals, the Woder 10K-GenII boasts a high volume of long-lasting microparticles that maintain the purity of your water for at least 3 years. But it’s not very effective for well water systems.

  • Built-in shutoff valve
  • Tested at independent laboratories
  • Poor water pressure

Brand Woder
Model SYNCHKG126873
Weight 2.7 pounds
Rating 4.0 / 5.0

7. Cuzn UC-200

With its 50,000-gallon lifespan, the Cuzn UC-200 is an excellent value option. Its KDF-55 filtration media inhibits the growth of mold and catches heavy metals, such as lead and mercury, while the coconut shell activated carbon prevents bad tastes and odors.

  • Targets chlorine and pesticides too
  • Connects directly to cold water line
  • Needs to be cleaned out fairly often

Brand CuZn Water Systems
Model UC-200
Weight 7.8 pounds
Rating 4.0 / 5.0

6. 3M Aqua-Pure

The 3M Aqua-Pure comes with a mounting bracket, screws, and all necessary tubing for a seamless installation under your bathroom or kitchen sink. The shutoff valve in its head assembly allows for easy filter changes that don’t require turning off your water supply first.

  • Works with well or municipal systems
  • Flow rate over 2 gallons per minute
  • May not include all fittings needed

Brand 3M AquaPure
Model 70020249671
Weight 4.8 pounds
Rating 4.0 / 5.0

5. Apec WFS-1000

Assembled in the USA, the Apec WFS-1000 is a high-performance solution that uses a dependable combination of polypropylene and extruded carbon to remove dust, rust, and even cloudiness from most sources of tap and well water. However, installation takes a while.

  • 1-year satisfaction guarantee
  • No bulky tank required
  • Doesn’t remove fluoride or lead

Brand APEC Water Systems
Model WFS-1000
Weight 13.3 pounds
Rating 4.0 / 5.0

4. iSpring RCC7AK-UV

Setting the iSpring RCC7AK-UV apart from the competition are its alkaline remineralization filter and UV sterilizer. The filter restores healthy, ionized minerals to your water and balances the pH level, while the sterilizer kills any harmful bacteria that remains.

  • Inline flow sensor switch
  • Color-coordinated tubing
  • Instructions aren’t very clear

Brand iSpring
Weight 30.2 pounds
Rating 4.4 / 5.0

3. Aquasana AQ-5300

The Aquasana AQ-5300 delivers a 3-stage filtration process that removes up to 99% of the most common contaminants, including chlorine and lead. This, combined with a 44% improved flow rate, gives you and your family on-demand access to clean and pure-tasting water.

  • Chrome faucet included
  • Filter replacement alerts
  • Lasts for up to 800 gallons

Brand Aquasana
Model AQ-5300+.56
Weight 8.5 pounds
Rating 4.0 / 5.0

2. Home Master Artesian

The innovative Home Master Artesian utilizes a modular design that incorporates its filter and housing together, which ensures easy and efficient component maintenance, while also helping to minimize the excess buildup of microorganisms and biofilm over time.

  • Adds calcium and magnesium to water
  • Design helps to prevent leaks
  • Very easy to install

Brand Home Master
Weight 14.5 pounds
Rating 4.0 / 5.0

1. WaterChef U9000

Designed for durability and reliability, the WaterChef U9000 has an exterior housing constructed from surgical stainless steel, with a 3-ply, pleated pre-filter used for the high-volume entrapment of both dirt and sediment. A limited lifetime warranty is also included.

  • Made in the usa
  • Certified by nsf international
  • Good for homes offices and rvs

Brand WaterChef®
Model U9000 (Brushed Nickel D
Weight 7.9 pounds
Rating 4.5 / 5.0

A Brief History Of Water Filtration

Clean drinking water is the engine that drives civilization. Early cities had to be established in locations where fresh water was plentiful, because you had to wait a long time for the Sparkletts truck to arrive in the 15th century B.C.E.

Speaking of the 15th century B.C.E., that just happens to be when the first known water treatment practices started. Prior to that, people just had to find a source that looked promising, drink, and then wait to see if they’d die.

The first method for purifying water, predictably enough, was boiling it. This is a surprisingly effective technique, especially for killing microorganisms — but based on their other methods, which included filtering water through sand, it was probably more of a lucky guess than any sort of scientific insight.

Hippocrates, the Greek father of medicine, was interested in developing techniques for purifying water as early as the 4th century B.C.E. He invented a crude filtration device that ran boiled water through a cloth bag, which came to be known as a “Hippocratic sleeve.”

The next big breakthrough in water purification was actually kind of a throwback to an old breakthrough. Sir Francis Bacon dreamed up the idea of desalination in 1627 C.E., and he believed that saltwater could be turned into drinking water if it was filtered through sand. Unfortunately, there were no ancient Egyptians around to tell him that’s simply a recipe for sandy water.

When Antonie van Leeuwenhoek and Robert Hooke put their newly-invented microscopes to the test, they discovered that there were actually quite a few tiny organisms swimming around in there. While they weren’t in a position to do anything about it just yet, their discovery would set the stage for future understanding of pathogens in drinking water.

The first water treatment plant was installed in London in 1829, using — you guessed it — a sand filter. The difference is, this one actually worked, and soon laws were passed requiring all public water be filtered in some way.

The United States lagged far behind in this regard, as it wouldn’t be until 1974 that the Safe Drinking Water Act was passed. However, we’ve done a lot of catching up since then, and now filtered water is huge business.

Of course, our ancestors would probably be horrified to see us drinking water so dirty that it didn’t even have any sand in it.

Just How Safe Is Your Water, Anyway?

It’s important to know how safe your drinking water is. Then again, it’s also one of those things you probably feel like you don’t want to know.

The good news is that, in most of America at least, drinking water is safer than it’s ever been. That’s due to a push in the 1970s to clean up water supplies, due in part to outrage and disgust after the Cuyahoga River in Cleveland actually caught on fire in 1969.

However, the aforementioned Safe Drinking Water Act, coupled with the creation of the Environmental Protection Agency, helped clean up most municipal water supplies. This meant protecting them from pollution, naturally-occurring chemicals like arsenic, sewage overflows, and more.

Today, most water treatment plants use a five-step process to clean up water before it gets to you. First, they bring in untreated water and mix it with alum, which attracts dirt and debris and coagulates. This leads directly to the next step, sedimentation, which is when they wait for all the chunks of nastiness to sink, and then the clearer water moves on to the next stage: filtration.

The water is passed through a series of filters, made of sand, gravel, and charcoal, that clean out smaller pieces of debris and some microbes. The rest of the microbes are killed off in the disinfection process, in which a small bit of chlorine is added to the liquid to finish off any remaining bugs.

From there, the water is stored in a tank while the chemicals work their magic. Once it’s been sufficiently treated, it’s sent through the pipes and out of your faucet. The water that emerges is extremely safe and clean — in most urban areas, anyway.

Anyone living in rural parts of the country, especially those drinking well water, are much more likely to encounter contaminants. These people should definitely consider investing in some sort of filtration system, and possibly even switching to the bottled stuff.

And while your water is probably safe if you live in the city, there’s no guarantee it will stay that way. Much of our infrastructure is incredibly outdated, and and as the residents of Flint can tell you, contaminants like lead can still infiltrate our drinking water.

Easy Ways To Drink More Water

You already know that you need to drink more water — but it’s hard (especially when you have to explain to your boss why you spend 30 minutes out of each hour in the bathroom).

The easiest way is to get a water bottle and carry it around with you. You’ll be surprised at how often you’ll drink if water’s readily available, and you won’t go broke buying a new plastic bottle every few hours. Some even let you infuse the water with fruit, vegetable slices, herbs, or whatever suits your fancy. They’re fantastic for anyone who needs something a little more flavorful than basic H2O.

There are apps that monitor your intake, and remind you when it’s time to drink. They can definitely help keep you on-track — and honest. Of course, if you have a regular supply of clean, filtered water, you may find that it’s easier than ever to get your daily dose. It’s amazing how much easier it is to down a glass when it doesn’t taste like zinc.


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