Top 10 Water Filters 2027

Direct Answer

The Best Overall water filter for 2027 is the Aquasana OptimH2O Reverse Osmosis + Claryum, priced around $399, which strips lead, fluoride, PFAS, chlorine, and microplastics through a three-stage RO-plus-remineralization design that few countertop or under-sink rivals match on contaminant breadth.

The Best Value pick is the Brita Elite Pitcher at roughly $36, which cuts lead, chlorine taste, and cadmium for pennies per gallon and needs no plumbing. This list serves renters who want a quick pour-through fix, homeowners ready for whole-system filtration, and backpackers who need field-safe water — with a budget band running from a $25 pitcher up to a $1,000 whole-house tank.

Every pick below is a real, currently sold product with verified pricing and NSF/ANSI-tested performance where certified.

How We Ranked the Top 10

We weighted each filter against what buyers actually report caring about, drawing on data from NSF International, Consumer Reports, Wirecutter, the EPA, CDC, and manufacturer certification sheets. The weighting:

• Contaminant removal and evidence — 25%
• Ease of use and installation — 20%
• Value and cost per gallon — 15%
• Filter quality and certification — 15%
• Flow rate and capacity — 15%
• Support and replacement availability — 10%

A filter that removes everything but clogs in a week, or pours fast but barely touches lead, drops quickly. The winners balance all six.

1. Aquasana OptimH2O Reverse Osmosis + Claryum 🏆 BEST OVERALL

Type: Under-sink RO system | Price: $399 | Best for: Homeowners who want the widest contaminant removal

The Aquasana OptimH2O is the most complete point-of-use system here. It combines reverse osmosis with Claryum selective filtration and a remineralization stage that adds calcium and magnesium back for taste. It is NSF-certified to reduce 88 contaminants, including up to 99% of lead, fluoride, arsenic, and PFOA/PFOS, plus chlorine, chloramine, and mercury.

The dedicated faucet delivers filtered water on demand, the tank stores about 0.5 gallon, and replacement filters run roughly $60–$120 per year. Reviewers consistently praise its taste and certification depth.

Pros:

• NSF-certified reduction of 88 contaminants including PFAS
• Remineralization restores taste lost in RO
• Up to 99% lead, fluoride, and arsenic reduction
• Reasonable annual replacement cost for an RO system

Cons:

• Requires under-sink plumbing and a drain connection
• RO wastes some water during filtration

Verdict: The Aquasana OptimH2O wins on sheer contaminant breadth — the safest all-around choice for a permanent home install.

2. Brita Elite Pitcher 💎 BEST VALUE

Type: Pour-through pitcher | Price: $36 | Best for: Renters who want lead reduction with zero plumbing

The Brita Elite Pitcher is the smartest value play in home filtration. The Elite filter (formerly Longlast+) is NSF-certified to reduce lead, cadmium, mercury, benzene, and chlorine taste and odor, and it lasts about six months or 120 gallons — roughly three times a standard Brita cartridge.

The pitcher holds around 10 cups, fits a fridge door, and costs only about $0.10–$0.15 per gallon filtered. For anyone who can't drill into a wall, it delivers genuine lead protection at the lowest entry price here.

Pros:

• NSF-certified lead and cadmium reduction
• Six-month filter life beats most pitcher cartridges
• Lowest entry price of any pick at $36
• No installation, plumbing, or tools required

Cons:

• Slow gravity flow versus plumbed systems
• Does not remove fluoride or PFAS

Verdict: The Brita Elite is the value champion — real lead reduction for the price of a dinner out.

3. Berkey Big Berkey Gravity System

Type: Countertop gravity system | Price: $387 | Best for: Off-grid and emergency-prep households

The Big Berkey is a 2.25-gallon stainless-steel gravity system that needs no electricity or plumbing — you pour water in the top and it drips through Black Berkey elements into the lower chamber. The maker reports reduction of bacteria, parasites, chlorine, heavy metals, and many chemicals, and the elements are rated for up to 3,000 gallons each before replacement.

It is a favorite for cabins, RVs, and preppers because it works during outages. Note that Berkey's marketing claims are self-tested rather than NSF-certified, so treat figures with appropriate caution.

Pros:

• Works with no power or plumbing during emergencies
• Long 3,000-gallon element life lowers cost per gallon
• Large 2.25-gallon capacity for households
• Durable stainless-steel construction

Cons:

• Performance claims are self-tested, not NSF-certified
• Bulky footprint on the counter

Verdict: The reliable off-grid pick — buy it for outages, travel, and cabins where power can't be assumed.

4. APEC ROES-50 Essence Reverse Osmosis

Type: Under-sink RO system | Price: $219 | Best for: Budget RO buyers who still want deep filtration

The APEC ROES-50 is a 5-stage reverse osmosis system assembled in the USA and a long-standing Wirecutter favorite. It produces up to 50 gallons per day and reduces up to 99% of contaminants, including lead, fluoride, arsenic, chlorine, and dissolved solids, with a final carbon polish for taste.

Filters are widely available, the first three pre-filters swap yearly for about $40, and the membrane lasts 2–4 years. It hits a strong middle ground between the pricier Aquasana and a basic pitcher.

Pros:

• Up to 99% reduction across lead, fluoride, and arsenic
• USA-assembled with easy-to-find replacement filters
• Affordable $219 entry into reverse osmosis
• 50 gallons per day keeps the tank topped up

Cons:

• No remineralization, so water can taste flat
• Like all RO, it sends some water to the drain

Verdict: The value RO choice — near-Aquasana filtration for a much lower upfront price.

5. LifeStraw Home Pitcher

Type: Pour-through pitcher | Price: $60 | Best for: Families wanting PFAS and microplastic reduction without plumbing

The LifeStraw Home Pitcher brings the brand's filtration expertise to a 7-cup countertop pitcher. Its membrane and activated-carbon-plus-ion-exchange stack is tested to reduce bacteria, parasites, microplastics, PFAS, lead, chlorine, and mercury — a wider net than most pitchers.

The membrane lasts about a year (264 gallons) and the carbon-ion filter about two months. For renters who specifically worry about PFAS or microplastics, it fills the gap between a basic Brita and an under-sink RO unit.

Pros:

• Tested reduction of PFAS, microplastics, and lead
• Removes bacteria and parasites unlike most pitchers
• Long-lasting one-year membrane
• No installation needed

Cons:

• Two-part filter system raises ongoing cost
• Does not remove fluoride

Verdict: The pitcher for PFAS worriers — broad protection in a pour-through form that any renter can use.

6. Aquasana Whole House Rhino

Type: Whole-house system | Price: $1,049 | Best for: Homeowners treating every tap and shower

The Aquasana Rhino treats water at the point of entry so every faucet, shower, and appliance runs filtered water. The 600,000-gallon (roughly six-year) model uses carbon and KDF media to reduce chlorine, sediment, and many organic chemicals, protecting plumbing and skin alike.

It has no replaceable cartridges on the base tank for years, though an optional pre/post-filter and UV add-on are sold separately. For hard-water homes that want filtered showers and cleaner laundry, the Rhino is the whole-home answer.

Pros:

• Filters every tap and shower in the home
• 600,000-gallon tank lasts about six years
• Reduces chlorine, sediment, and organics system-wide
• Protects pipes and appliances from buildup

Cons:

• Highest upfront cost in this list at $1,049
• Professional installation recommended

Verdict: The whole-home pick — worth it when you want filtered water at every fixture, not just the kitchen sink.

7. ZeroWater 10-Cup Pitcher

Type: Pour-through pitcher | Price: $40 | Best for: People who want the lowest measurable TDS

The ZeroWater 10-Cup Pitcher uses a 5-stage ion-exchange filter and ships with a TDS meter so you can read total dissolved solids dropping to near 000 ppm. It is NSF-certified to reduce lead and chromium and pulls out far more dissolved solids than carbon-only pitchers.

The tradeoff is shorter filter life — typically 25–40 gallons depending on your tap — so cost per gallon is higher. For well-water homes or anyone chasing the purest pour-through reading, it delivers.

Pros:

• Five-stage filter drives TDS toward zero
• Included meter lets you verify performance
• NSF-certified lead and chromium reduction
• Affordable $40 entry price

Cons:

• Short filter life raises long-term cost
• Water can taste slightly acidic to some users

Verdict: The purity-reading pick — best when you want to see dissolved solids hit near zero on a meter.

8. Epic Pure Pitcher

Type: Pour-through pitcher | Price: $70 | Best for: Renters who want certified PFAS and fluoride reduction

The Epic Pure Pitcher holds about 10 cups and uses a dense solid-carbon-block filter tested to reduce a long list including fluoride, lead, PFOA/PFOS, chromium-6, chlorine, and pesticides. Each filter is rated for about 150 gallons (roughly 3–4 months). It is one of the few pitchers that meaningfully tackles fluoride, making it a go-to for buyers who specifically want that without an under-sink install.

The brand backs filters with a long warranty and subscription replacements.

Pros:

• Tested reduction of fluoride, PFAS, and chromium-6
• Solid carbon block handles a wide chemical range
• 150-gallon filter life per cartridge
• No plumbing required

Cons:

• Higher per-filter price than mainstream pitchers
• Slower pour than thinner-media filters

Verdict: The fluoride-fighting pitcher — the easiest no-install route to fluoride and PFAS reduction.

9. Waterdrop G3 P800 Tankless RO

Type: Under-sink tankless RO | Price: $649 | Best for: Kitchens that want fast, on-demand RO water

The Waterdrop G3 P800 is a tankless reverse osmosis system with a slim profile and an 800-gallon-per-day flow rate, so filtered water arrives quickly without a bulky storage tank. It is NSF-certified to reduce TDS, lead, fluoride, chlorine, and PFAS, and its smart faucet shows TDS readings and filter life on a display.

A low drain ratio of about 2:1 wastes less water than older RO units. The trade-off is a price near the top of the list and a reliance on electricity.

Pros:

• Tankless design saves under-sink space
• Fast 800 GPD flow with no storage tank
• NSF-certified lead, fluoride, and PFAS reduction
• Efficient 2:1 drain ratio versus older RO

Cons:

• Requires a power outlet under the sink
• Premium $649 price

Verdict: The modern RO pick — choose it for fast, space-saving filtered water with a smart display.

10. Sawyer Squeeze Water Filter

Type: Portable backpacking filter | Price: $39 | Best for: Backpackers and travelers treating water in the field

The Sawyer Squeeze is the staple field filter for hikers and emergency kits. Its 0.1-micron hollow-fiber membrane removes 99.99999% of bacteria (like E. Coli and salmonella) and 99.9999% of protozoa (like giardia and cryptosporidium), and it screws onto standard bottles or its included pouches.

Sawyer rates it for up to 100,000 gallons with periodic backflushing, an extraordinary lifespan for the weight. It does not remove viruses or chemicals, so it is built for backcountry streams, not city tap.

Pros:

• Removes 99.99999% of bacteria and 99.9999% of protozoa
• Rated for up to 100,000 gallons with backflushing
• Tiny, lightweight, and packable
• Lowest field-filter price at $39

Cons:

• Does not remove viruses or chemical contaminants
• Manual squeezing required for flow

Verdict: The trail and travel pick — the gold-standard portable filter for streams, not for treating home tap.

Which One Is Right for You?

What to Look For in a Water Filter

• NSF/ANSI certification — Look for NSF/ANSI 53 (lead, contaminants), 42 (taste and chlorine), and 58 (reverse osmosis) marks rather than vague "purifies" claims. Certification means independent testing.
• Your actual water report — Pull your municipal Consumer Confidence Report or test well water first, so you buy a filter that targets *your* contaminants instead of guessing.
• Contaminant match — Carbon pitchers handle chlorine and some lead; only RO or specialized media remove fluoride, PFAS, and arsenic. Match the technology to the threat.
• Cost per gallon, not just sticker — A cheap filter with short cartridge life can cost more over a year than a pricier system with long-lived media.
• Flow and capacity — A slow pitcher annoys a big family; a tankless RO or whole-house unit keeps up. Size the filter to your household.
• Replacement availability — A filter is only as good as its cartridges. Confirm replacements are stocked and reasonably priced before you commit.

What matters less than marketing implies: alkaline-boost claims, mineral "energizing" pitches, and dramatic before-and-after photos. Independent NSF certification and your own water report tell you far more than any brand promise.

FAQ

Which water filter is the best overall for 2027? The Aquasana OptimH2O Reverse Osmosis + Claryum at about $399 earns our top spot for NSF-certified reduction of 88 contaminants, including lead, fluoride, arsenic, and PFAS, with remineralization for taste.

What is the best value water filter? The Brita Elite Pitcher at roughly $36 offers NSF-certified lead and cadmium reduction with a six-month filter and no installation, making it the value leader.

Which water filter removes fluoride? Reverse osmosis systems like the Aquasana OptimH2O, APEC ROES-50, and Waterdrop G3 remove most fluoride, and among pitchers the Epic Pure is specifically tested to reduce it.

Do any pitchers remove PFAS? Yes — the LifeStraw Home and Epic Pure pitchers are both tested to reduce PFOA and PFOS, the most common PFAS compounds, without any plumbing.

Is reverse osmosis worth it? If your water contains fluoride, arsenic, nitrates, or high dissolved solids, RO is the most thorough point-of-use option. It wastes some water and benefits from remineralization, but it removes the widest range of contaminants.

Which filter is best for backpacking? The Sawyer Squeeze at $39 is the standard, removing 99.99999% of bacteria and 99.9999% of protozoa and lasting up to 100,000 gallons, though it does not remove viruses or chemicals.

Bottom Line

For 2027, the Aquasana OptimH2O Reverse Osmosis + Claryum is our Best Overall water filter — about $399, it reduces 88 NSF-certified contaminants including lead, fluoride, arsenic, and PFAS, then restores minerals for taste. The Brita Elite Pitcher, around $36, is our Best Value, delivering real lead and cadmium reduction with zero installation.

If your priority is whole-home coverage, fluoride removal in a pitcher, off-grid backup, or field use, use the decision tree above to route yourself to the Rhino, Epic Pure, Big Berkey, or Sawyer Squeeze instead. Start with your water report, buy on NSF certification, and you'll filter exactly what your home needs.

Sources

• NSF International — drinking water filter certification
• Consumer Reports — water filter buying guide
• Wirecutter — best water filter pitcher and under-sink reviews
• EPA — drinking water and PFAS guidance
• CDC — water treatment and filtration
• Aquasana — OptimH2O and Rhino product pages
• APEC Water — ROES-50 specifications
• LifeStraw — Home Pitcher filtration data
• Sawyer — Squeeze filter performance
• Waterdrop — G3 P800 tankless RO specs

*Water filter review — best water filters 2027, rankings, ratings, prices, and a review of the top water filter picks for home and travel.*