Find My Filter →

WHOLE-HOME WATER TREATMENT, FINALLY UNDERSTANDABLE

Find the right water filter system for your house

FilterTier compares contaminant evidence, real service flow, maintenance, replacement schedules, warranty coverage and 10-year ownership cost — then matches systems to your actual home.

SEE THE SYSTEM, NOT JUST THE CLAIMS

Whole-home treatment can be simple to understand.

Filter, soften, disinfect, or combine stages — FilterTier shows what each piece actually does before you buy.

◫
Media TankLong-life whole-home filtration
▥
Cartridge RackVisible staged filter changes
◉
Water SoftenerHardness and scale treatment
✦
UV StageMicrobial disinfection protection

FROM THE WATER MAIN TO EVERY TAP

This is a whole-house decision — not just a drinking-water filter.

FilterTier sizes the equipment room and the fixtures together: the system has to remove what you care about without choking the showers, tubs and appliances you actually use.

The equipment has to fit the house.

Flow rate, pipe size, pressure, maintenance access, drain requirements and replacement space all matter.

And it has to keep up with the fixtures.

Rain heads, body sprays, multiple simultaneous showers and tub fillers can completely change the right answer.

THE FILTERTIER DECISION MODEL

Six things we make impossible to miss.

Evidence

Certified, independently tested, manufacturer-tested or only claimed — clearly labeled.

Real Flow

Service/certified flow and bundle bottlenecks compared with your actual peak demand.

Maintenance

Every cartridge, tank, lamp, media change, salt refill and service interval.

Real Price

Observed normal price range and price history — not fake crossed-out MSRP savings.

Treatment Type

Filtration, true softening, salt-free conditioning, UV and specialty treatment kept separate.

Where It's Made

Headquarters, design, manufacturing and final assembly preserved as separate claims.

BRANDS

26+

Premium, dealer, DTC and big-box brands compared on the same fields.

EVIDENCE

4 levels

Certified, independently tested, manufacturer-tested or only claimed.

FLOW

Real GPM

We separate service, certified and peak flow so large homes are sized correctly.

OWNERSHIP

10 years

Purchase price is only year zero. We track replacements, service and warranty.

THE SPECS THAT ACTUALLY CHANGE THE DECISION

Stop comparing marketing pages. Compare the systems.

Every product and bundle is normalized so you can see what it treats, how strong the evidence is, whether it can handle your house, and what ownership really looks like.

Contaminant Evidence

PFAS, VOCs, chlorine, chloramine, lead, iron, sulfur and more — with evidence labels that show how each claim is supported.

Flow & Pressure

Service flow, certified flow, peak flow and bundle bottlenecks — matched to simultaneous household demand.

Maintenance & Replacement

Every sediment filter, cartridge, UV lamp, main-media change and estimated service interval in one place.

Warranty Reality

Tank, valve, media, electronics, labor, transferability and requirements — not one headline badge.

FIND MY WATERFIT

We size the system to your house before we rank it.

Bathrooms alone are not enough. FilterTier estimates your real simultaneous demand, then checks whether each filter, conditioner, softener and UV stage can keep up.

Start the Finder →

1

Your water

City or well water, PFAS, chloramine, hardness, iron, sulfur, bacteria and test results.

2

Your peak flow

Simultaneous showers, rain heads, body sprays, tub fillers, laundry and appliances.

3

Your ownership preferences

Maintenance tolerance, replacement interval, budget, salt preference and warranty priorities.

4

Your ranked matches

WaterScore and Your Fit are shown separately so one product is never treated as right for every house.

ONE UNIVERSAL SCORE + ONE PERSONAL SCORE

A great filter can still be the wrong filter for your house.

WaterScore measures how a product stacks up across the market. Your Fit measures whether it matches your water, flow demand, maintenance tolerance, warranty preference and budget.

WATERSCORE

91 / 100

Excellent contaminant evidence

High score for certified contaminant reduction, strong transparency and treatment performance.

Market quality score

YOUR FIT

64%

Flow concern for your home

Your estimated 15 GPM peak demand is well above this system's 5.7 GPM certified/service flow.

Personal fit score

SAME FIELDS. EVERY SYSTEM.

The comparison consumers should have had all along.

Open Compare →

Metric

Aquasana HealthShield

SpringWell CF+ Max

HALO 5 + Defender

Service / certified flow

5.7 GPM

20 GPM

4.21 GPM per Defender

PFAS evidence

Certified

Claim / evidence review

Certified Defender component

Main replacement

~2 years / capacity

~10 years / capacity

Defender cartridge + media

Scale treatment

None

Salt-free conditioning

Conditioning

Warranty

2 years

Long-term limited

Component / dealer specific

10-year ownership

Calculated

Calculated

Calculated

COMPARE THE BRANDS PEOPLE ACTUALLY SEE

Premium systems next to Lowe's and Home Depot options.

FilterTier includes dealer brands, direct-to-consumer systems and big-box products so consumers can answer the obvious question: what am I really getting for the extra money?

Aquasana

SpringWell

HALO

Culligan

Kinetico

A.O. Smith

iSpring

Whirlpool

GE

Aquasure

Express Water

APEC Water

PRO+AQUA

Waterdrop

Pentair

3M Aqua-Pure

FOR PLUMBERS & WATER PROS

Send clients a smarter way to choose before you quote.

Plumbers can share a co-branded FilterTier link. The homeowner completes the finder, sees independent matches, and can send the result back with their flow, contaminant, maintenance and warranty preferences already organized.

FilterTier for Plumbers →

EXAMPLE PARTNER LINK

filtertier.com/p/smith-plumbing

Smith Plumbing logo + intro → WaterFit finder → matched systems → homeowner shares results back with Smith Plumbing.

Affiliate or lead compensation never changes WaterScore, Your Fit or ranking order.

STOP GUESSING

Start with your house. Then find the system.

It takes a few minutes to estimate the flow you need, identify the treatment you care about, and decide how much maintenance and warranty protection you actually want.

26 BRANDS. ONE COMPARISON STANDARD.

From premium dealer systems to the brands on the Lowe's shelf.

Every brand goes through the same fields: treatment evidence, real flow, maintenance, replacement cost, warranty, manufacturing origin and long-term ownership.

Aquasana logo

Aquasana

SpringWell logo

SpringWell

HALO logo

HALO

Culligan logo

Culligan

Kinetico logo

Kinetico

EcoWater logo

EcoWater

RainSoft logo

RainSoft

WaterCare logo

WaterCare

A.O. Smith logo

A.O. Smith

Pentair logo

Pentair

Solventum / 3M Aqua-Pure logo

3M Aqua-Pure

US Water Systems logo

US Water Systems

SoftPro logo

SoftPro

iSpring logo

iSpring

Waterdrop logo

Waterdrop

Kind Water Systems logo

Kind Water

RKIN logo

RKIN

Crystal Quest logo

Crystal Quest

AquaOx logo

AquaOx

Home Master logo

Home Master

Whirlpool logo

Whirlpool

GE logo

GE

Aquasure logo

Aquasure

Express Water logo

Express Water

APEC Water logo

APEC Water

PRO+AQUA logo

PRO+AQUA

WHAT ARE YOU ACTUALLY BUYING?

The hardware is easier to understand when you can see the treatment chain.

FilterTier shows the physical architecture of each system and bundle so you can tell a long-life media tank from a cartridge rack, a softener from a conditioner, and an optional UV stage from the main filter.

Long-life media tank

Typical carbon, catalytic-carbon, well-water or specialty-media systems. Usually low routine maintenance but may require a major media re-bed later.

Cartridge system

Compact housings with replaceable filters. Lower purchase prices are common, but annual replacement cost can materially change 10-year value.

Multi-tank / bundle

Filter + softener, conditioner or specialty stage. FilterTier scores the complete chain and uses the lowest-flow stage as the effective system flow.

UV disinfection stage

A separate microbial-treatment stage. It does not remove PFAS or hardness, and its rated flow can become a system bottleneck.