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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 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 by1,123
Type of Contaminants
Flow Rate
Filter Lifespan and Maintenance
Most important from
3658 reviews
#2
Aquasana Whole House Well Water Filter | 500,000 Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Tackles up to 99.99% Chlorine, Bacteria, Viruses, Cysts & Scale | Rhino WH-WELL-CT-UV
The Aquasana Whole House Well Water Filter System is designed to tackle well water contaminants effectively, making it a solid choice for households with specific water quality concerns. One of its standout features is its UV purifier, which is independently tested to sterilize 99.99% of bacteria and viruses, ensuring your water is safe for drinking and daily use. With a flow rate of 14.6 gallons per minute, this system maintains good water pressure, a critical aspect for busy households. Its innovative upflow, dual-tank design not only improves water contact time with the filtration media but also minimizes clogging and maintains efficient performance over time.
Rating
9.7
Type of Contaminants
System Size and Installation
Additional Features
Most important from
598 reviews
#3
Aquasana Whole House Well Water Filter | 500K Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Install Kit | Tackles up to 99.99% Chlorine, Bacteria, Viruses & Scale | EQ-WELL-UV-PRO-AST
The Aquasana Whole House Well Water Filter is designed especially for homes using well water, making it a solid choice if you want cleaner, healthier water throughout your entire house. It uses a multi-stage filtration setup combining carbon, KDF media, UV light, and salt-free scale control to remove up to 99.99% of chlorine, bacteria, viruses, and scale. This means your water will taste better, be safer for cooking and bathing, and help protect your pipes and appliances from scale buildup without using salt or chemicals.
Rating
8.5
Type of Contaminants
Flow Rate
System Size and Installation
Most important from
598 reviews
Top 10 Best Whole House Water Filtration Systems 2025 in the United States
#1
Winner
iSpring Whole House Water Filter System, Reduces Lead, Scale, Chlorine, Chloramine, 3-Stage Whole House Water Filtration System, Model: WGB32B-KDS
iSpring Whole House Water Filter System, Reduces 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 1123 this week
Aquasana Whole House Well Water Filter | 500,000 Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Tackles up to 99.99% Chlorine, Bacteria, Viruses, Cysts & Scale | Rhino WH-WELL-CT-UV
Aquasana Whole House Well Water Filter | 500,000 Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Tackles up to 99.99% Chlorine, Bacteria, Viruses, Cysts & Scale | Rhino WH-WELL-CT-UV
Type of Contaminants: Bacteria, viruses, chlorine
Flow Rate: 14.6 GPM
Filter Lifespan and Maintenance: Change filters every 2 months
System Size and Installation: 57 x 11 x 57 inches
Additional Features: UV Disinfection, Chlorine Reduction
Aquasana Whole House Well Water Filter | 500K Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Install Kit | Tackles up to 99.99% Chlorine, Bacteria, Viruses & Scale | EQ-WELL-UV-PRO-AST
Aquasana Whole House Well Water Filter | 500K Gallons | UV, Carbon & KDF | Salt-Free Softener Alternative | Install Kit | Tackles up to 99.99% Chlorine, Bacteria, Viruses & Scale | EQ-WELL-UV-PRO-AST
Type of Contaminants: chlorine, bacteria, viruses, scale
Flow Rate: 14.7 gallons per minute
Filter Lifespan and Maintenance: up to 500,000 gallons or 5 years
System Size and Installation: 69x10.5x57 inches; 116 lbs; home install
Additional Features: multi-stage carbon, KDF, UV, salt-free scale
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
APEC Water Systems TO-SOLUTION-15 Whole House Water Filter, Salt Free Water Softener & Reverse Osmosis Drinking Water Filtration Systems for 3-6 Bathrooms
APEC Water Systems TO-SOLUTION-15 Whole House Water Filter, Salt Free Water Softener & Reverse Osmosis Drinking Water Filtration Systems for 3-6 Bathrooms
Type of Contaminants: chloramine, chlorine, odors, 99% contaminants
Filter Lifespan and Maintenance: low maintenance, long-lasting performance
System Size and Installation: 23"L x 20"W x 12"H; under sink
Additional Features: salt-free softener, controls scale, 2000 ppm
Related Products
Up to 19% off
APEC Water Systems TO-SOLUTION-10 Whole House Water Filter, Salt Free Water Softener & Reverse Osmosis Drinking Water Filtration Systems for 1-3 Bathrooms
APEC Water Systems TO-SOLUTION-10 Whole House Water Filter, Salt Free Water Softener & Reverse Osmosis Drinking Water Filtration Systems for 1-3 Bathrooms
Type of Contaminants: chlorine, chloramine, odors, harsh chemicals
Filter Lifespan and Maintenance: minimal maintenance
System Size and Installation: 9x48x9 inches; under sink; needs drain
Additional Features: salt-free conditioner; reverse osmosis; 99% removal
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
iSpring WGB32B-KS Whole House Water Filter System, 3-Stage Filtration, Reduces Heavy Metals, Hydrogen Sulfide, Chlorine, Chloramine, Sediments
iSpring WGB32B-KS Whole House Water Filter System, 3-Stage Filtration, Reduces Heavy Metals, Hydrogen Sulfide, Chlorine, Chloramine, Sediments
Type of Contaminants: heavy metals, hydrogen sulfide, chlorine, chloramine
Flow Rate: up to 15 gallons per minute
Filter Lifespan and Maintenance: treats 100,000 gallons, 1 year use
System Size and Installation: 27.75x7.75x24.25 in; 52 lbs; DIY
Certifications and Standards: NSF/ANSI certified
Additional Features: 3-stage filters; no TDS reduction; US support
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
#10
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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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.