The Best Water Filters (2021 Reviews)

Jordan Robinson
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Apart from being a necessity for most of us, water filters remain worldwide, the cleanest and cheapest way to access clean water.

In developed countries, there is little problem sourcing clean drinking water. So you may find that you don’t even consider water filters until your local city municipality announces a water outage due to water filtering system problems.

What happens when the power is down in your area? If you’ve got an electric filter, then it’s not too much of a problem. But if you’re reliant on a pump filter, you might find that you need to stock up on bottled water while you wait for the power to come back on or the filter to be repaired.

In reality, a power outage is the biggest threat to your water filter.

If you’ve got a good backup solution either way, it’s not a problem.

Rather than paying for bottled water, you could save yourself a bundle by investing in a good-quality water filter, such as the ones below.

NameCategoryProduct
CuZn UC-200 Under Counter Water FilterBest OverallCuZn UC-200 Under Counter Water Filter
SimPure V5 Under Sink Water FilterBudget PickSimPure V5 Under Sink Water Filter
AFWFilters AIS10-25SXT AFW Air Injection IronUpgrade PickAFWFilters AIS10-25SXT AFW Air Injection Iron

1. CuZn UC-200 Under Counter Water Filter

Our rating: 10 / 10

CuZn UC-200 Under Counter Water Filter

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Pros:

  • Ultra high capacity
  • Dual filtration
  • Easy to install
  • Made in the USA

Cons:

  • Price
  • Color

As with any other water filter, the CuZn UC-200 provides you with clean, crisp, and great tasting drinking water, which is likely to be healthier than the tap water that comes from your municipal water supply.

Its special traits are the price, durability, and the capacity. The UC-200 can easily be installed in most kitchens. Installation takes about 30 to 45 minutes.

The rule of thumb is that you should buy a water filter when you start to notice changes in the taste of your water. These changes could be due to the filter having been used for a long period of time, or you notice that water pressure is lower, or you may be getting the smell of chlorine in your water.

2. Home Master TMAFC-ERP-L Artesian Full Contact

Our rating: 9 / 10

Home Master TMAFC-ERP-L Artesian Full Contact

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Pros:

  • Produces high-quality water
  • Includes a bypass valve
  • Works as a whole house system
  • Produces clear water at a high rate
  • Suitable for both fresh and salt water
  • Easy to install

Cons:

  • Can be noisy
  • Hard to clean filter

The Home Master Artesian Full Contact with Permeate Pump Loaded Undersink Reverse Osmosis Water Filter System is a fantastic product that will help you to create water that will more than surpass your needs in terms of capacity and purity.

This product has a filter that comes with a 300-gallon capacity which is a relatively good amount. This is a good product to choose if you only drink water and don’t use it for other means.

The cost is relatively affordable and you don’t need a plumber to install it. A few minutes is all you need to have it up and running.

3. iSpring WGB21B 2-Stage Whole House Water Filtration System

Our rating: 9 / 10

iSpring WGB21B 2-Stage Whole House Water Filtration System

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Pros:

  • Budget friendly
  • Removes excess lead
  • Faucet, valves, and filters included
  • Easy to install
  • Filters use a state of the art KDF technology (decreases chlorine taste and odor)
  • One-year limited warranty
  • Rated at 100 gallons of water usage per day

Cons:

  • You may experience a slight chlorine taste in your water
  • May need to adjust or replace your faucet
  • DIY installation may be difficult for some

Chrome Faucet Kit, and Home Wiring Kit.

We love that this filtration system takes the worry out of purifying your water by making it safe for drinking, cooking, and bathing. Just line up the inlet and outlet, and turn the copper lifting butterfly valves to start purifying your water.

In addition to purifying your water by removing excess lead levels, the iSpring WGB21B water filter unit removes sediment, chlorine taste and odor, and other harmful contaminants for clean, fresh, and healthy water in your home. It can remove up to 99% of pharmaceutical compounds from your water, household chemicals, bacteria, and even bad taste and odor. The filter is easily replaceable every six to nine months.

4. APEC Top Tier Supreme Certified Alkaline Mineral pH+ High Output 90 GPD 6-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System

Our rating: 9 / 10

APEC Top Tier Supreme Certified Alkaline Mineral pH+ High Output 90 GPD 6-Stage Ultra Safe Reverse Osmosis Drinking Water Filter System

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Pros:

  • 90 GPD
  • Low waste
  • Does not use electricity

Cons:

  • Can only be used for indoor drinking water or water that will be used for things like washing, or rinsing.

The APEC Reverse Osmosis Water Filter System is certified to be the World’s Best RO Water Filtration System for 2019. This water filter system contains all the accessories that you need to install the unit.

It also comes with a 10-year warranty from the manufacturer and is ultra safe as it has a six-stage filtration system. The unit’s low waste production capacity is 1.5 gallons per day.

The membrane in the reverse osmosis system is rated to last up to 8,000 gallons. The machine can be used for both indoor and cold water usage such as outdoor faucets for washing or rinsing.

5. APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

Our rating: 9 / 10

APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

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Pros:

  • Shut-off water line to filter
  • Dual valve faucet for easy pressure release
  • Heavy-duty TFC membrane
  • Certified contaminant reduction: 99.99%
  • Optional Top Tier certification
  • 5-year limited warranty

What used to be a luxury item in home water filtration is now available to the mass market thanks to the APEC Water Systems ROES-50 Essence Reverse Osmosis System.

It stands out in this price range as a top performer in both quality and certification, giving you results that are on a level with the more premium options on this list.

This a 5-stage water filter with a large top-fill tank that holds 3.5 liters of water, and it is very easy to use with a dual valve faucet. It’s primarily designed to filter and deliver drinking water, but the manufacturer makes no claims to its suitability for other uses.

6. Express Water Whole House Water Filter

Our rating: 9 / 10

Express Water Whole House Water Filter

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Pros:

  • Made with more efficiency and durability in mind
  • Effective filters will last up to 3 months
  • Heavy duty quality

100% Stainless Steel Housing, Premium 3 Filter Cartridge Design – Works with all water supply types, Reverse Osmosis, Well Water, City Water etc.

If you’re looking for a top-of-the-line whole home water filtration system, it doesn’t get much better than this. This system comes with 3 filters, which are pre-assembled and easily replaceable.

The filters are well made and will filter out sediment, phosphates, chlorine, lead, volatile organic contaminants, and other types of contaminants. Filters are labeled and easily identified.

7. APEC Water Systems Ultimate RO-Hi Top Tier Supreme Certified High Output Fast Flow Ultra Safe Reverse Osmosis Drinking Water Filter System

Our rating: 9 / 10

APEC Water Systems Ultimate RO-Hi Top Tier Supreme Certified High Output Fast Flow Ultra Safe Reverse Osmosis Drinking Water Filter System

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The APEC Water RO system generates the purest and cleanest water you can get at your home. It has a multi-stage feat with five filters, a storage tank and a dispenser. The water is acidic free and carbon enriched with minerals which can be further preserved with the bottle made of glass. The quality of the water is so pure that you can use it to make ice cubes as well!

The multi-stage purification process of the RO system makes it so clean that you can drink the water all on your own. However, it is recommended that you have it tested to make sure that there are no traces of arsenic, bacteria or other impurities in the water. Once done with the testing, you can ensure that your family will drink only safe and healthy water for the rest of their lives.

The RO system is made of quality stainless steel. All the materials used in making it are food grade and have been tested for sanitary quality, so you know that the water you are giving your family is completely safe. The material doesn’t impart stains in the flavor of the water and is also resistant to corrosion or damage in case it falls. The system is also backed by a lifetime warranty, so you know that you aren’t going to be stuck with the bill for fixing or replacing it with a new one.

8. APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

Our rating: 9 / 10

APEC WFS-1000 Super Capacity Premium Quality 3 Stage Under-Sink Water Filter System

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With 2.5" In-Line Filter

9. Frizzlife Under Sink Water Filter System-High Capacity Direct Connect Under Counter Drinking Water Filtration System-0.5 Micron Quick Change Removes 99.99% Lead

Our rating: 9 / 10

Frizzlife Under Sink Water Filter System-High Capacity Direct Connect Under Counter Drinking Water Filtration System-0.5 Micron Quick Change Removes 99.99% Lead

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Pros:

  • Easy installation
  • Makes water taste better
  • Removes bad odors from your water
  • Good for your health
  • Easy to refill
  • Includes 2 Carbon Filters

Cons:

  • There have been reports of leaks from the faucet
  • Faucet is troublesome
  • It can be loud at times

The Frizzlife water filter is a more environmentally-friendly solution to removing contaminants from your drinking water. It improves the taste of your water, and it reduces the levels of chlorine and sediment. The filter also reduces the load on your dishwasher and washing machine because it makes your water softer.

It’s a drain-mounted water filter that can be installed in an hour or so by a DIYer. A typical unit will produce around 300 gallons of filtered water before you’ll need to change the filters.

What’s nice about this system is that it comes with a compact carbon filter that can be removed and cleaned without tools. The whole unit can be drained out and emptied into a bucket for easy clean-up.

10. iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System

Our rating: 9 / 10

iSpring RCC7AK 6-Stage Superb Taste High Capacity Under Sink Reverse Osmosis Drinking Water Filter System

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The iSpring RCC7AK reverse osmosis drinking water filtration system is a 6-stage system that includes a fluoride filter, a sediment filter, two carbon filters, and an extremely effective KDF filter, followed by a stage that adds back some of the calcium lost in the first few stages.

The iSpring RCC7AK under sink reverse osmosis filtration system can be installed in three ways, using either a simple tee or a ball valve to control water flow.

This filtration system is compatible with both standard faucet and cold water dispenser connections. The attached filtration spout on the exterior of the unit accommodates 5/8"-27 tubing, which can simply be inserted into the top of the unit before the final channel joining the system to the fridge or other tap.

11. Express Water Reverse Osmosis Alkaline Water Filtration System

Our rating: 9 / 10

Express Water Reverse Osmosis Alkaline Water Filtration System

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Pros:

  • Price is very affordable
  • Easy to install
  • Effectively removes harmful contaminants including chloramine, chlorine, lead, mercury, cysts, and arsenic
  • The water produced is infused with desirable calcium and magnesium hard-water minerals
  • Removes excess heavy metals like lead, mercury, cadmium, arsenic, copper, zinc, and aluminum
  • Eliminates chlorine and chloramine (chlorine combined with ammonia)
  • Eliminates most viruses that cause colds and flu
  • Great for use in RVs, boats, and other facilities that have well water
  • Handy TDS (total dissolved solids) meter built in

Cons:

  • Tank is a little small, so frequent refilling may be required
  • Tank does not automatically shut-off, so water flow could be an issue
  • Water has a hint of chlorine taste at first, but if used regularly, the chlorine taste diminishes
  • The pipes that screw in to connect to the cold water pipe don’t grip onto the pipe tightly
  • The water pressure slows down if you use it while filling the tank

12. Home Master TMAFC Artesian Full Contact Undersink Reverse Osmosis Water Filter System,White

Our rating: 8 / 10

Home Master TMAFC Artesian Full Contact Undersink Reverse Osmosis Water Filter System,White

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We installed our water filter earlier in the year and the unit is superb. Its strength is its customer service. 1, you get a 3 year limited warranty. This you can extend up to a 5 year warranty. 2, it comes with a six port manifold and a two foot hose.

The latter is for connecting the filter to the additional components you might buy. I do not know how long, or if, the filter will last. But it is nice to be covered by a 5 year warranty.

I have a light memory and it was nice when I installed the unit that the instructions had a bar code so I could call if I forgot something.

13. Express Water Whole House Water Filter

Our rating: 8 / 10

Express Water Whole House Water Filter

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Pros:

  • Safe
  • Easy to install
  • Does not need electricity
  • Complies with the NSF Standards 42 and 53 for drinking water systems
  • Filters up to 100,000 gallons
  • 100-gallon water capacity
  • 185 gallons per minute capacity
  • Includes a ceramic disc alkalinity cartridge
  • Conforms to NSF requirements for lead and other contaminants
  • EC600 Pump features a stainless steel body with a solid ceramic disc in a zinc-coated cast iron pump housing.

14. Engdenton Faucet Water Filter Stainless-Steel Reduce Chlorine High Water Flow

Our rating: 8 / 10

Engdenton Faucet Water Filter Stainless-Steel Reduce Chlorine High Water Flow

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Pros:

  • Great for the price
  • Easy installation

Cons:

  • Leaks when filled to capacity
  • Lower flow rate than I expected

I was really impressed by the quality of this water filter and filter pitcher. The pitcher comes in a nice package that’s really easy to open. It’s very sturdy and has a nice finish on the outside.

The filter has four real filtration stages and has an advertised flow rate of about 3.5 liters per minute, which is about a third of what most filter pitchers and dispensers offer. However, this filtering effectiveness is very reminiscent of the CuZn RD-009, which is my top pick for pitcher filters.

Unlike the CuZn model however, the Engdenton is guaranteed to be BPA and lead free. It’s also made of stainless steel, which will never wear out like the plastic used in most filter pitchers. It also means that it’s easier to clean.

15. Express Water Heavy Metal Whole House Water Filter

Our rating: 8 / 10

Express Water Heavy Metal Whole House Water Filter

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Pros:

  • For singles, small-sized families, and couples
  • Very popular model
  • Reduces Fluoride, Cysts, and Lead
  • Faucet adapter or kitchen draw attachment also included
  • Lifetime residential warranty, 10-year commercial warranty

(4 GPH)

The Express Water heavy metal whole house filter reviews have been outstanding with this product. This is a real winner. Some people are using the Express Water and are now able to drink water with chlorine and fluoride in it.

It uses the latest technology to get rid of sediment, chlorine, heavy metals, and bacteria in your water.

16. AFWFilters AIS10-25SXT AFW Air Injection Iron

Our rating: 8 / 10

AFWFilters AIS10-25SXT AFW Air Injection Iron

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Pros:

  • Adds oxygen to water
  • Long lifespan
  • Affordable
  • No installation required
  • Easy to use
  • Quick delivery
  • Easy to use
  • Conserves water
  • Doesn’t need electricity
  • Removes iron, mercury, and lead

Cons:

  • May be above the budget of some people
  • Doesn’t remove fluoride or chlorine

We like AFW filters because they are economical, effective, and very easy to use. We especially like how little space this particular model takes up. It’s easy to fasten to the outside of a 3rd floor balcony, for example. It takes up only a handful of square inches, as opposed to most filters that can take up a consistent chunk of wall space.

AFW Filters are high-output systems that can significantly reduce the amount of:

This particular model is built for small homes, offices, greenhouses, and workshops where water is scarce or especially hard to come by. The AFW Injection Filter is ideal for everything from aquariums to homes to commercial spaces. It properly removes heavy metals and other undesirable substances while promoting clean, healthy water for drinking, cooking, and bathing.

17. APEX MR-1030 GAC

Our rating: 8 / 10

APEX MR-1030 GAC

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Pros:

  • KDF 55 and Calcite for removing Chlorine, Mercury, TTHMs and Cysts
  • Chlorine-Free Sparkling Water
  • Easy to Use
  • Easy to Install

Cons:

  • Might be overpriced for some
  • Not very durable
  • Insufficient Flow Rate

I love the fact that I don’t need to throw out bottles when I use it. You can make up to 9 GALLONS of fresh, safe water with this system.

It’s one of the best water filters if you want absolutely clean and safe water for your family.

It’s very effective at removing any taste, smell, chlorine, sediment, iron and heavy metals.

18. Woder WD-S-5K Under Sink Water Filter

Our rating: 8 / 10

Woder WD-S-5K Under Sink Water Filter

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Pros:

  • Run much more smoothly and quietly
  • Large capacity
  • Provides fresh, clean water at a cheaper cost
  • Easy to install and maintain
  • Good customer service
  • Removes cryptosporidium, giardia and other harmful contaminants found in tap water
  • Easy to install, just below the sink
  • Can be customized to be connected to multiple faucets
  • Have added features such as carbon filter, odor filter, charcoal filter that can remove chlorine taste and odor, lead and heavy metals (chromium, cadmium), germs, pesticides, chlorine, chlorine odor, chlorine taste, chloramines, chemical taste and odor, MTBE…
  • The carbon filter removes bad tastes and odors

Cysts, Germs, Chemicals, VOCs, Organics, Bad Tastes and Odors.

19. PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration

Our rating: 8 / 10

PureDrop CUW4 Aquacube Tankless Drinking Water Filter System Compact Ultra Filtration

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Pros:

  • Affordable
  • Portable
  • Easy to install
  • Comes with a lifetime warranty
  • Made in the USA

Cons:

  • Difficult to install
  • Needs to be cleaned often

The Aquacube Tankless Drinking Water Filter System from Pure Water Products is a powerful little filter that is very popular with RV owners and people that spend time traveling.

This product is best for you if you are planning on using the system for a short amount of time, such as a vacation or a camping trip.

The installation is very simple, and can be done in just a few minutes. The system also comes with a lifetime warranty, as well as a 30-day money back guarantee.

20. SimPure V5 Under Sink Water Filter

Our rating: 7 / 10

SimPure V5 Under Sink Water Filter

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Pros:

  • The unit is small in size, making it easy to install, and will fit under any kitchen sink
  • The SimPure Water Filter is simple to install as it can be hooked up to your current plumbing in under an hour
  • The system reduces contaminants quickly (in just 3 minutes) so you have clean water immediately to drink or cook with, as well as to use for showering, bathing, and other everyday uses
  • The installation and maintenance of this unit is quite easy and straightforward, and it comes with a measuring cup to measure the amount of water you use, making it much easier to monitor the amount of water that crosses the filter
  • The SimPure Under Sink Water Filter is very easily to install, and is quite affordable. It’s also pretty large, which means that it can be used in both under the sink and under the counter.
  • This unit is easy to use, and also easy to maintain. There is a small indicator light that will let you know when it’s time to change the faucet cartridges
  • The filters for this system are not all that expensive to replace, so you can keep it running without having to worry about breaking the bank

Radioactive Waste, Viruses, Bacteria and Pathogens.

21. EHM Ultra Premium Alkaline water Pitcher

Our rating: 7 / 10

EHM Ultra Premium Alkaline water Pitcher

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Pros:

  • Lightweight and compact
  • Very efficient and convenient
  • Comes with a warranty
  • Filter lasts for three months under normal usage
  • Very easy to use

22. OXA Alkaline Water Filter Pitcher

Our rating: 6 / 10

OXA Alkaline Water Filter Pitcher

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Pros:

  • Easy to use and maintain
  • Inexpensive
  • Fits in fridge doors
  • Handy measuring tape on front

Although it’s not the best looking pitcher, the OXA Water Filter Pitcher impressed us with its cost, quality, and effectiveness in removing harmful contaminants from your water. If you’re looking to get a water filter that will successfully purify your water, then you should check out the OXA Alkaline Water Filter Pitcher.

The filters for the OXA Water Filter Pitcher need to be changed every two months. However, we were able to filter over 15 liters of water before we had to change the filter.

In terms of taste, the OXA pitcher provided us with an extremely fresh and crisp taste that we took many times. The pitcher itself comes with measuring marks for 2.5L, which is convenient for measuring how much you’re drinking.

23. LiquaGen – 4-Stage Reverse Osmosis and Deionization RO/DI Portable Space Saver Water Filter System

Our rating: 6 / 10

LiquaGen - 4-Stage Reverse Osmosis and Deionization RO/DI Portable Space Saver Water Filter System

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The LiquaGen RO/DI portable water filter system is designed to fit ideally on countertops. The system relies on four different stages of filtration.

At the beginning, water passes through a pre-filter that traps sediment and bacteria to prevent them from passing through the filter. Next, fluoride is removed through the Fluoride Sediment Deposit Deionization Filter.

Next is a sediment filter, sandy water diverter filter, and a RO membrane to remove dissolved substances and chemical compounds as the water travels through the membrane.

24. BWT Vida Water Filter Pitcher

Our rating: 5 / 10

BWT Vida Water Filter Pitcher

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Pros:

  • Lasts up to 6 months
  • Pot-style filter that’s easy to refill
  • Nice-looking pitcher
  • Filters up to 6 months
  • Pitcher looks high tech
  • Changes the taste of water
  • Affordable and well priced
  • Easily holds a full pitcher
  • Doesn’t remove fluoride from the water

In the past, we’ve had our doubts about the magical filter pitchers, but this one seems much better than the others on the market.

It’s also well-priced for what it does. It’s great that it lasts up to 6 months. It’s also very affordable.

We also liked that the pitcher looked high tech (high-tech filters are always more appealing to us).

Frequently Asked Questions (FAQ)

What is the best water filter on the market?

The most common water filter used by homeowners in North America is the under-sink pitcher filter. They are remarkably simple to use and easy to install.

Aside from a convenient pitcher, there are other filter options available as well: undersink bottle filters and countertop models.

Water purification tablets are an alternative method of drinking water filtration. Although they are the healthiest and least expensive option, they are not as efficient as the other three methods detailed above.

What is the best water filter pitcher 2021?

If you buy something † make sure you can use it without difficulty! If it's your first time purchasing a water filter, then you will need to know the different kinds of filters available on the market. Choosing a filtration system based on your needs, budget, and taste is a key factor in making sure it meets your expectations.

Which one is the best water filter pitcher 2021 is usually up to your personal preferences and needs. Some respondents even drink tap water without a filter. It's up to you. But if you want to get the most out of your water, then we recommend to purchase a water filter.

What is the best water purification system?

If you look closely you will see that many of the top water filter system manufacturers are the same companies that make the best water bottles (BPA free) like the ones we reviewed. They are also in this section to buy along with their water bottles. Some of the most common brands in this category are Brita, Pur, and ZeroWater.

These manufacturers have made significant improvements to their product lines over the past decade with new and improved re-designed filters that are more effective at removing harmful elements.

The only feasible downside to these powerhouse brands in this category is the price. You might think that is a bit high for what you might consider a simple plastic water bottle. However, the quality of their products are second to none and it will prove to be a worthwhile investment in the long run.

Conclusion

Choosing the best water filter for your home and family can seem daunting, but there are so many considerations that are easy to forget about.

With all of the options available, it’s important to determine which are the most important features for the best filter. To make things easier, we’ve compiled our top 5 recommendations to help you remember the main points that should go into your decision.

Our Recommendation

NameCategoryProduct
CuZn UC-200 Under Counter Water FilterBest OverallCuZn UC-200 Under Counter Water Filter
SimPure V5 Under Sink Water FilterBudget PickSimPure V5 Under Sink Water Filter
AFWFilters AIS10-25SXT AFW Air Injection IronUpgrade PickAFWFilters AIS10-25SXT AFW Air Injection Iron