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10 Best Whole House Water Filtration Systems 2025 in the United States
#1
Winner
iSpring Whole House Water Filter System, Reduces PFOA/PFOS, PFAS, Lead, Scale, Chlorine, Chloramine, 3-Stage Whole House Water Filtration System, Model: WGB32B-KDS
The iSpring Whole House Water Filter System (WGB32B-KDS) offers robust protection against various contaminants, making it a solid choice for ensuring cleaner water throughout your home. With its three-stage filtration process, it effectively reduces scale, PFAS, lead, chlorine, chloramine, hydrogen sulfide, and heavy metals. The system boasts a high flow rate of up to 15 gallons per minute, which ensures minimal impact on your water pressure. It also features a reputable build, meeting NSF/ANSI standards, and has a filter lifespan capable of handling up to 250,000 gallons of water per year for a household of four, which is quite impressive.
Rating
10.0
Chosen by1,203
Type of Contaminants
Flow Rate
Filter Lifespan and Maintenance
Most important from
3518 reviews
#2
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
The Whole House Water Filter System offers a robust three-stage filtration process designed to enhance the quality of water throughout your home. It excels in reducing heavy metals like lead and arsenic, as well as chlorine and chloramine, making it suitable for users concerned about these contaminants. Additionally, its anti-scale protection feature helps prevent damage to pipes and appliances, which could be a cost-saving benefit over time.
Rating
10.0
Type of Contaminants
Filter Lifespan and Maintenance
Most important from
2384 reviews
#3
Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch
The Express Water Whole House Heavy Metal Water Filter Set is a comprehensive 3-stage water filtration system designed to reduce harmful impurities across your entire home's water supply. This system includes a sediment filter, a carbon block filter, and a KDF filter, which work together to remove contaminants like heavy metals, iron, lead, nickel, and chromium. Each filter is crafted from high-quality materials, ensuring a long lifespan of up to 100,000 gallons depending on the incoming water quality.
Rating
9.9
Type of Contaminants
Flow Rate
Filter Lifespan and Maintenance
Most important from
2001 reviews
Top 10 Best Whole House Water Filtration Systems 2025 in the United States
#1
Winner
10.0 score
iSpring Whole House Water Filter System, Reduces PFOA/PFOS, PFAS, Lead, Scale, Chlorine, Chloramine, 3-Stage Whole House Water Filtration System, Model: WGB32B-KDS
iSpring Whole House Water Filter System, Reduces PFOA/PFOS, PFAS, Lead, Scale, Chlorine, Chloramine, 3-Stage Whole House Water Filtration System, Model: WGB32B-KDS
Type of Contaminants: scale, PFAS, lead, chlorine, chloramine
Flow Rate: 15 GPM
Filter Lifespan and Maintenance: 250,000 gallons/year
System Size and Installation: 24.5 x 8 x 28 inches
Certifications and Standards: NSF/ANSI standards
Additional Features: anti-scale, 1-inch NPT, 1-year warranty
Chosen by 1203 this week
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
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
Type of Contaminants: lead, arsenic, chlorine, chloramine
Flow Rate: 17 GPM
Filter Lifespan and Maintenance: 6-12 months or 100,000 gallons
System Size and Installation: 29x8.5x30 inches; 63 lbs, freestanding
Additional Features: anti-scale, pressure gauges, release buttons
Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch
Express Water Whole House Heavy Metal Water Filter Set – 3 Stage Water Filtration Replacement Kit – Sediment, Carbon Block, KDF High Capacity Cartridge Filters – 5 Micron Water Filter 4.5” x 20” inch
Type of Contaminants: heavy metals, iron, lead, nickel, chromium
Filter Lifespan and Maintenance: up to 100,000 gallons, easy maintenance
System Size and Installation: 4.5” x 20”, 17.5 pounds, easy installation
Certifications and Standards: ANSI, WQA, NSF, Ro
Additional Features: does not reduce Total Dissolved Solids
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
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
Type of Contaminants: Chlorine, organic chemicals, pesticides, herbicides
Flow Rate: 14.6 Gallons Per Minute
Filter Lifespan and Maintenance: 1 million gallons or 10 years
System Size and Installation: 46"L x 9"W x 69"H, 86.1 pounds
Additional Features: Chlorine Reduction, UV Disinfection, salt-free
iSpring Whole House Water Filter System, Highly Reduces Sediment, Taste, Odor, and up to 99% Chlorine, 3-Stage w/ 20-Inch Sediment and Carbon Block Filters, Model: WGB32B, 1" Inlet/Outlet
iSpring Whole House Water Filter System, Highly Reduces Sediment, Taste, Odor, and up to 99% Chlorine, 3-Stage w/ 20-Inch Sediment and Carbon Block Filters, Model: WGB32B, 1" Inlet/Outlet
Type of Contaminants: sediment, taste, odor, chlorine
Flow Rate: 15 GPM
Filter Lifespan and Maintenance: 100,000 gallons or one year
System Size and Installation: 24.25 x 7.75 x 27.75 inches
Certifications and Standards: NSF/ANSI standards
Additional Features: Tankless, 1-inch NPT connections
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Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)
Aquasure Harmony Series 48,000 Grains Whole House Water Softener w/High Efficiency Digital Metered Control Head (48,000 Grains)
Type of Contaminants: calcium, magnesium, chlorine, VOCs, heavy metals
Flow Rate: 12 Gallons Per Minute
System Size and Installation: 12 x 12 x 56 inches, 120 pounds
Additional Features: Programmable, automatic digital control head
iSpring Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House, Model: WGB32BM
iSpring Whole House Water Filter System, Reduces Iron, Manganese, Chlorine, Sediment, Taste, and Odor, 3-Stage Iron Filter Whole House, Model: WGB32BM
Type of Contaminants: iron, manganese, chlorine, sediment, rust
Flow Rate: 15 GPM
Filter Lifespan and Maintenance: 100,000 gallons, about a year
System Size and Installation: 24.25 x 7.75 x 27.75 inches
Certifications and Standards: NSF/ANSI standards
Additional Features: Tankless, 1-year warranty, lifetime support
3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP904, Reduces Sediment, Chlorine Taste and Odor, and Scale, Heavy Duty, 100,000 Gallon
3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP904, Reduces Sediment, Chlorine Taste and Odor, and Scale, Heavy Duty, 100,000 Gallon
Type of Contaminants: sediment, chlorine taste, odor, scale
Flow Rate: 20 Gallons Per Minute
Filter Lifespan and Maintenance: 100,000 gallons, SQC design
System Size and Installation: 4.5 x 4.5 x 25.2 inches
Additional Features: Heavy Duty
Aquasana Whole House Water Filter System | 1,000,000 Gallons | Carbon & KDF Media | Reduces 97% Chlorine & Sediment | Includes Pre- and Post-Filters | Rhino EQ-1000
Aquasana Whole House Water Filter System | 1,000,000 Gallons | Carbon & KDF Media | Reduces 97% Chlorine & Sediment | Includes Pre- and Post-Filters | Rhino EQ-1000
Type of Contaminants: Chlorine
Flow Rate: 14.6 Gallons Per Minute
Filter Lifespan and Maintenance: 1 million gallons or 10 years
System Size and Installation: 46 x 9 x 44 inches
Additional Features: Chlorine Reduction
#10
8.9 score
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Buying Guide for the Best Whole House Water Filtration Systems
Choosing the right whole-house water filtration system is crucial for ensuring that your entire household has access to clean, safe, and great-tasting water. A whole-house water filtration system is installed at the point where the main water line enters your home, ensuring that all the water you use for drinking, cooking, bathing, and cleaning is filtered. To make an informed decision, you need to understand the key specifications and how they relate to your specific needs. Here are the main factors to consider when selecting a whole-house water filtration system.Type of ContaminantsDifferent water filtration systems are designed to remove different types of contaminants, such as chlorine, sediment, heavy metals, bacteria, and viruses. It's important to know what contaminants are present in your water supply. You can get your water tested to identify these contaminants. Once you know what needs to be removed, you can choose a system that targets those specific impurities. For example, if your water has high levels of chlorine, a system with activated carbon filters would be effective.
Flow RateThe flow rate of a water filtration system is measured in gallons per minute (GPM) and indicates how much water can be filtered at a time. This is important because it affects the water pressure in your home. A higher flow rate is necessary for larger households with multiple bathrooms and high water usage. For a small household, a flow rate of 10-15 GPM might be sufficient, while larger homes may require 20-25 GPM or more to ensure adequate water pressure.
Filter Lifespan and MaintenanceThe lifespan of the filters in a water filtration system varies depending on the type of filter and the amount of water used. Some filters need to be replaced every few months, while others can last for several years. It's important to consider how often you'll need to replace the filters and the cost associated with it. Systems with longer-lasting filters may have a higher upfront cost but can be more economical in the long run. Choose a system with a maintenance schedule that fits your lifestyle and budget.
System Size and InstallationThe size of the water filtration system and the complexity of the installation process are important factors to consider. Some systems are compact and easy to install, while others may require professional installation and more space. Consider where you will install the system and whether you have the necessary space and plumbing skills. If you're not comfortable with DIY installation, you may need to factor in the cost of professional installation.
Certifications and StandardsLook for water filtration systems that are certified by reputable organizations such as NSF International. These certifications ensure that the system has been tested and meets specific standards for contaminant removal and performance. Choosing a certified system gives you confidence that the product will effectively filter your water and provide the health benefits you expect. Check the certification labels and read reviews to ensure the system meets your needs.
Additional FeaturesSome water filtration systems come with additional features such as UV purification, water softening, or smart monitoring. UV purification can be useful for eliminating bacteria and viruses, while water softening can help reduce scale buildup in your pipes and appliances. Smart monitoring features can alert you when it's time to replace filters or if there are any issues with the system. Consider which additional features are important to you and whether they justify the extra cost.