June 30, 2025

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10 Best whole house water treatment systems of 2025

Save up to 12% off

Best Choice

1

Aquasana
Aquasana Whole House Water Filter System | 1,000,000 Gallons | Salt-Free Softener Alternative | UV, Carbon & KDF | Tackles up to 99.99% Chlorine, Bacteria, Viruses, Cysts & Scale | EQ-1000-AST-UV
Main highlights

Enhanced Water Quality
Activated carbon and UV purifier reduce chlorine and contaminants, improving water taste and safety.

Whole House Application
Ideal for homes using well water or needing comprehensive filtration without reducing essential minerals.

Impressive Water Softening
Customers praise the noticeable improvement in water softness and taste.
9.6

Exceptional

Our Rating

8.0
Easy installation

8.0
Flavor

8.0
worth the money
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Value for Money

2

iSpring
iSpring WF150K Whole House Central Water Filtration System with Set and Forget Smart Valve, Up to 10 Years
Main highlights

Key Features
NSF/ANSI 42 and 53 certified, removes multiple contaminants, high capacity for 2-5 bathrooms, minimum maintenance with digital control, 10-year warranty.

Ideal Use Cases
Perfect for residential homes or commercial settings needing clear, taste-enhanced water; especially homes with 2-5 bathrooms or appliances needing protection.

Customer Praise
Most reviews highlight the system`s effectiveness in water purification, ease of maintenance, and the exceptional customer service and support from iSpring.
Key specs
- Installation Type:Whole house
- Dimensions:11 x 11 x 63.5 inches
- Contaminants Removed:Chlorine, lead, heavy metals
- Maintenance Frequency:Minimal, every 5-10 years
- Filtration Stages:N/A
9.5

Excellent

Our Rating

9.9
worth the money

9.9
Easy installation

9.9
Flavor
3

EXPRESS WATER
Whole House Water Filter System| ULTIMATE PROTECTION | 3 Stage Water Purifier Whole Home, Top-Tier Heavy Metal + Anti-Scale Filters, High Reduction in Scale, Chloramine, Chlorine, PFAs, Lead, Arsenic
Main highlights

Advanced Filtration Technology
Three-stage system reduces heavy metals, scale, and contaminants.

Versatile Home Use
Ideal for well, tap, or municipal water filtering.

Customer Praised Water Quality
Users love the improved taste and clarity of water.
Key specs
- Installation Type:Inline, under-sink
- Dimensions:29 x 8.5 x 30 inches
- Contaminants Removed:Mercury, lead, heavy metals
- Maintenance Frequency:Easy-to-change cartridges
- Filtration Stages:3-Stage
9.4

Excellent

Our Rating

9.9
Water tight

9.3
Easy installation

8.9
materials Quality
4

Aquasure
Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)
Main highlights

Ultra-Softened Water Delivery
The Aquasure Harmony Series provides ultra-softened water for 3-4 bathrooms, enhancing water quality throughout your home.

Ideal for Household Appliance Protection
Perfect for preventing scale buildup and prolonging appliance lifespan, making it ideal for homes with multiple bathrooms.

Highly Rated for Ease of Setup
Customers frequently praise the easy setup and installation process, ensuring a hassle-free experience.
9.1

Excellent

Our Rating

9.5
Sheerness

9.3
worth the money

8.9
Easy installation
5

Aquasure
Aquasure 64,000 Grains Whole House Water Filter Bundle with Automatic Digital Metered Control Softener and 75 GPD RO Reverse Osmosis Drinking System | Removes Hardness | Ideal for 4-6+ bathrooms
Main highlights

Efficient Water Softening
Removes 64,000 grains of hardness, eliminating skin-damaging minerals.

Ideal for Large Households
Perfect for homes with 4-6 bathrooms and up to 6 members.

Easy Installation Praised
Many users found installation straightforward, even for DIY enthusiasts.
Key specs
- special feature:Aquatrol control head
- dimensions:13 x 13 x 62 inches
- material:Premium-quality materials
- capacity:64,000 grains
- color:N/A
8.8

Very Good

Our Rating

9.7
Water tight

9.3
Tech Support

8.7
Easy installation
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6

iSpring
iSpring Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House, Model: WGB32BM
Main highlights

Comprehensive Filtration System
Reduces iron, manganese, chlorine, sediment, and odors for whole house.

Ideal for Hard Water Areas
Perfect for homes with iron, manganese, and chlorine issues.

Exceptional Customer Service
Highly praised for responsive and helpful customer support.
8.7

Very Good

Our Rating

9.9
Tech Support

9.7
Sheerness

9.3
Flavor
7

Kenmore
Kenmore Elite 520 Hybrid Water Softener & Whole House Filtration System | NSF Certified | Reduces Hard Water and Chlorine Taste & Odor in Your Home | Fully Programmable
Main highlights

Effective Water Treatment
Reduces hardness up to 100 grains/gallon and iron up to 3 PPM.

Ideal for Whole Home Use
Perfect for households needing softened and filtered water.

Highly Praised Installation
Easy installation praised by customers, fits existing setups.
Key specs
- special feature:Programmable
- dimensions:20.5L x 15W x 48H
- material:N/A
- capacity:N/A
- color:N/A
8.4

Good

Our Rating

8.2
Easy installation

8.0
worth the money

8.0
Flavor
8

Aquasure
Aquasure Fortitude Lite Series 800,000 Gallons High Performance Whole House Water Treatment System with KDF55/GAC Media and 20" Pleated Sediment Filter | Removes 99% of Contaminants, 1-3 Bathrooms
Main highlights

Comprehensive Water Treatment
Treats up to 800,000 gallons, protecting appliances and providing clean water for 1-3 bathrooms.

Ideal for Medium-Sized Homes
Perfect for households with 1-3 bathrooms needing efficient water filtration.

Ease of Maintenance Praised
Customers love the hassle-free installation and minimal upkeep.
Key specs
- special feature:NSF Certified filtration
- dimensions:17 x 9 x 38 inches
- material:High-quality materials
- capacity:800,000 gallons
- color:N/A
8.2

Good

Our Rating
9

AO Smith
AO Smith Whole House Water Filter System - Whole Home Filtration for Well & City Water - Filters 96.9% of Chlorine Taste & Odor - 6 yr, 600,000 Gl, AO-WH-FILTER

12% Off
Main highlights

Chlorine Reduction for Healthier Water
Reduces 96.9% of chlorine taste and odor, enhancing water quality.

Ideal for Large Households
Perfect for homes with 4+ people; no water waste.

Customer Praised Water Taste Improvement
Users report significant taste improvement and chemical smell removal.
8.0

Good

Our Rating

8.4
Easy installation

8.0
Flavor

8.0
Tech Support
10

Culligan
Culligan WH-S200-C Whole-House Sediment Water Filtration System, Clear
Main highlights

Whole House Protection
Reduces sediment, dirt, and silt for clean water throughout.

Ideal for Residential Use
Perfect for homes needing sediment protection for pipes and appliances.

High Build Quality
Praised for its sturdy construction and durability.
Key specs
- Installation Type:Plate Mount
- Dimensions:6.57L x 6.18W x 15.94H
- Contaminants Removed:Sediment, dirt, sand, silt
- Maintenance Frequency:N/A
- Filtration Stages:N/A
7.9

Good

Our Rating

9.3
Sheerness

8.7
Easy installation

8.4
Flavor

10 Best whole house water treatment systems of 2025

1

Aquasana Whole House Water Filter System | 1,000,000 Gallons | Salt-Free Softener Alternative | UV, Carbon & KDF | Tackles up to 99.99% Chlorine, Bacteria, Viruses, Cysts & Scale | EQ-1000-AST-UV

8.0

8.0

8.0

How do we rank?

How do we rank?

Analyzing top stores

2

iSpring WF150K Whole House Central Water Filtration System with Set and Forget Smart Valve, Up to 10 Years

9.9

9.9

9.9

3

Whole House Water Filter System| ULTIMATE PROTECTION | 3 Stage Water Purifier Whole Home, Top-Tier Heavy Metal + Anti-Scale Filters, High Reduction in Scale, Chloramine, Chlorine, PFAs, Lead, Arsenic

9.9

9.3

8.9

4

Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)

9.5

9.3

8.9

5

Aquasure 64,000 Grains Whole House Water Filter Bundle with Automatic Digital Metered Control Softener and 75 GPD RO Reverse Osmosis Drinking System | Removes Hardness | Ideal for 4-6+ bathrooms

9.7

9.3

8.7

6

iSpring Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House, Model: WGB32BM

9.9

9.7

9.3

7

Kenmore Elite 520 Hybrid Water Softener & Whole House Filtration System | NSF Certified | Reduces Hard Water and Chlorine Taste & Odor in Your Home | Fully Programmable

8.2

8.0

8.0

8

Aquasure Fortitude Lite Series 800,000 Gallons High Performance Whole House Water Treatment System with KDF55/GAC Media and 20" Pleated Sediment Filter | Removes 99% of Contaminants, 1-3 Bathrooms

9

AO Smith Whole House Water Filter System - Whole Home Filtration for Well & City Water - Filters 96.9% of Chlorine Taste & Odor - 6 yr, 600,000 Gl, AO-WH-FILTER

8.4

8.0

8.0

10

Culligan WH-S200-C Whole-House Sediment Water Filtration System, Clear

9.3

8.7

8.4

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