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10 Best Water Purifiers 2026 in the United States
#1
Winner
Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 53 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet
The Waterdrop G3P600 Reverse Osmosis System is a robust under-sink water purifier designed with advanced features. Its 8-stage filtration system effectively removes a wide range of contaminants, including TDS, chlorine, fluoride, and heavy metals, ensuring your water is clean and safe. The system is certified by NSF/ANSI 42, 58, and 372, which guarantees its efficacy and material safety. Additionally, it meets several international standards, adding to its reliability.
Rating
10.0
Chosen by1,128
TDS (Total Dissolved Solids) Level
Filter Replacement and Maintenance
Flow Rate
Most important from
3665 reviews
#2
Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier
The Bluevua RO100ROPOT-UV Reverse Osmosis System offers a robust solution for those seeking clean, safe drinking water at home. Its standout feature is the 6-stage filtration system, which includes advanced RO technology and UV light, effectively reducing harmful substances like lead and chlorine while enriching the water with essential minerals. This makes it a great choice for health-conscious individuals or families looking to improve their water quality.
Rating
9.1
Filter Replacement and Maintenance
Certification and Standards
Most important from
4592 reviews
#3
Brita Water Pitcher, Everyday Elite Filter, Removes 99% of Lead, Includes 1 Filter, 10-Cup Capacity, White
The Brita Everyday Elite Water Pitcher is a compact, manual countertop water purifier that uses activated carbon and ion-exchange technology to reduce contaminants like lead, chlorine, mercury, and more, improving taste and safety. Its 10-cup capacity is convenient for everyday use and fits well in most refrigerators. The filter effectively handles water with Total Dissolved Solids (TDS) levels up to 500 ppm, which is suitable for typical tap water. Maintenance is straightforward with a built-in electronic filter change indicator, and filters should be replaced about every six months for best performance. The pitcher is BPA-free and designed to reduce plastic waste by replacing single-use bottles.
Rating
7.9
Type of Purification Technology
Filter Replacement and Maintenance
Most important from
3890 reviews
Top 10 Best Water Purifiers 2026 in the United States
#1
Winner
Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 53 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet
Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 53 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet
Type of Purification Technology: 8-stage Filtration
TDS (Total Dissolved Solids) Level: 1500 PPM
Filter Replacement and Maintenance: Smart display faucet, easy filter replacement
Flow Rate: 0.42 Gallons Per Minute
Certification and Standards: NSF/ANSI 42, 58, 372
Chosen by 1128 this week
Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier
Bluevua RO100ROPOT-UV Reverse Osmosis System Countertop Water Filter - 6 Stage Purification with UV and Remineralization, Counter RO Filtration, Portable Water Purifier
Type of Purification Technology: 6-stage filtration, RO, UV light
TDS (Total Dissolved Solids) Level: Built-in TDS Meter, Reduce TDS
Filter Replacement and Maintenance: 12 to 24 months
Flow Rate: 0.26 Liters/Minute
Brita Water Pitcher, Everyday Elite Filter, Removes 99% of Lead, Includes 1 Filter, 10-Cup Capacity, White
Brita Water Pitcher, Everyday Elite Filter, Removes 99% of Lead, Includes 1 Filter, 10-Cup Capacity, White
Type of Purification Technology: activated carbon and ion-exchange
Storage Capacity: 10-cup
TDS (Total Dissolved Solids) Level: up to 500 ppm
Filter Replacement and Maintenance: electronic filter indicator; replace biannually
Flow Rate: slower than electric or under-sink
Certification and Standards: meets safety and effectiveness standards
Aquasana Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration for Kitchen - 2-Stage - Brushed Nickel Faucet - AQ-5200.55
Aquasana Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration for Kitchen - 2-Stage - Brushed Nickel Faucet - AQ-5200.55
Type of Purification Technology: Claryum filtration, Sedimentation
Storage Capacity: 500 gallons
TDS (Total Dissolved Solids) Level: Up to 300 ppm
Filter Replacement and Maintenance: Lasts six months, easy swap
Flow Rate: 0.5 gallons per minute
ZeroWater Official Replacement Filter - 5-Stage 0 TDS Water Filter Replacement IAPMO Certified to Reduce Lead, Chromium, and PFOA/PFOS 4-Pack
ZeroWater Official Replacement Filter - 5-Stage 0 TDS Water Filter Replacement IAPMO Certified to Reduce Lead, Chromium, and PFOA/PFOS 4-Pack
Type of Purification Technology: 5-stage ion exchange
TDS (Total Dissolved Solids) Level: 006
Filter Replacement and Maintenance: 15 gallons per filter
Certification and Standards: NSF, IAPMO, ANSI
Related Products
Up to 38% off
Aquasana Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration for Kitchen - 3-Stage Max Flow - Brushed Nickel Faucet - AQ-5300+.55
Aquasana Under Sink Water Filter System - Reduces PFAS, Lead, & Chlorine in Drinking Water - Under Counter Claryum Filtration for Kitchen - 3-Stage Max Flow - Brushed Nickel Faucet - AQ-5300+.55
Type of Purification Technology: 3-stage Claryum filtration
TDS (Total Dissolved Solids) Level: Does not reduce TDS
Filter Replacement and Maintenance: Lasts 6 months or 800 gallons
Flow Rate: 0.7 gallons per minute
Certification and Standards: Certified for chlorine and contaminants
Big Berkey Gravity-Fed Stainless Steel Countertop Water Filter System 2.25 Gallon with 2 Authentic Black Berkey Elements BB9-2 Filters
Big Berkey Gravity-Fed Stainless Steel Countertop Water Filter System 2.25 Gallon with 2 Authentic Black Berkey Elements BB9-2 Filters
Type of Purification Technology: Gravity-fed
Storage Capacity: 2.25 gallons
Filter Replacement and Maintenance: Filters last up to 6,000 gallons
Flow Rate: 0.03 gallons per minute
Certification and Standards: Independent testing and certification
Philips Reverse Osmosis Water Filter Countertop with 2 Pitchers - ADD6926WH/37, 6 Stage RO Water Filtration System Purifier Dispenser with Aquaporin Technology, NSF/ANSI 372 Certified, Reduce TDS Lead
Philips Reverse Osmosis Water Filter Countertop with 2 Pitchers - ADD6926WH/37, 6 Stage RO Water Filtration System Purifier Dispenser with Aquaporin Technology, NSF/ANSI 372 Certified, Reduce TDS Lead
Type of Purification Technology: 6-stage filtration with Aquaporin tech
Storage Capacity: two 7-cup pitchers
TDS (Total Dissolved Solids) Level: max 500 ppm
Filter Replacement and Maintenance: single cartridge; needs care after non-use
Certification and Standards: NSF/ANSI 372 certified
APEC Water Systems ROES-PH75 Essence Series Alkaline Mineral pH+ 75 GPD 6-Stage WQA Certified Ultra Safe Reverse Osmosis Drinking Water Filter System, with Extra High Capacity Pre-Filter Set Stage 1-3
APEC Water Systems ROES-PH75 Essence Series Alkaline Mineral pH+ 75 GPD 6-Stage WQA Certified Ultra Safe Reverse Osmosis Drinking Water Filter System, with Extra High Capacity Pre-Filter Set Stage 1-3
Type of Purification Technology: RO with 6-stage filtration
Storage Capacity: No built-in storage tank
TDS (Total Dissolved Solids) Level: Up to 2000 ppm
Filter Replacement and Maintenance: Pre-filters changed every 6 months
Flow Rate: 0.05 Gallons per minute
Certification and Standards: WQA certified
#10
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 Purification Technology: UV, salt-free descaling, carbon & KDF
TDS (Total Dissolved Solids) Level: Does not reduce TDS
Filter Replacement and Maintenance: Lasts up to 500,000 gallons
Flow Rate: 14.7 Gallons Per Minute
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Buying Guide for the Best Water Purifiers
Choosing the right water purifier is essential for ensuring that you and your family have access to clean and safe drinking water. The right purifier can remove contaminants, improve taste, and provide peace of mind. To make an informed decision, it's important to understand the key specifications and how they relate to your specific needs. Here are the main factors to consider when selecting a water purifier.Type of Purification TechnologyThis spec refers to the method used by the purifier to clean the water. Common technologies include Reverse Osmosis (RO), Ultraviolet (UV), and Ultrafiltration (UF). RO is effective for removing dissolved salts and heavy metals, making it suitable for areas with hard water. UV purifiers use ultraviolet light to kill bacteria and viruses, ideal for areas with microbiologically unsafe water. UF purifiers are good for removing larger particles and some bacteria, suitable for areas with low TDS (Total Dissolved Solids). Choose the technology based on the quality of your water supply.
Storage CapacityThis spec indicates how much purified water the unit can store. It's important because it determines how much water is readily available for use. Small families or individuals might be fine with a capacity of 5-8 liters, while larger families might need 10-15 liters or more. Consider your daily water consumption and the number of people in your household to decide the right capacity for you.
TDS (Total Dissolved Solids) LevelTDS measures the concentration of dissolved substances in water, including minerals, salts, and metals. This spec is crucial because it helps determine the type of purifier you need. Water with TDS levels below 300 ppm is generally considered good, while levels above 500 ppm may require an RO purifier. Test your water's TDS level to choose a purifier that can effectively handle the specific contaminants present.
Filter Replacement and MaintenanceThis spec refers to how often the filters need to be replaced and the ease of maintenance. Regular filter replacement is essential for the purifier to function effectively. Some purifiers have indicators that alert you when it's time to change the filter. Consider the availability and cost of replacement filters, as well as the ease of performing maintenance tasks. Choose a model that fits your willingness and ability to maintain it.
Flow RateFlow rate indicates how quickly the purifier can process water, usually measured in liters per hour. This is important for ensuring you have a steady supply of purified water, especially during peak usage times. A flow rate of 10-15 liters per hour is generally sufficient for most households. If you have high water consumption or need water quickly, look for a purifier with a higher flow rate.
Certification and StandardsThis spec refers to the certifications and standards the purifier meets, which can indicate its effectiveness and safety. Look for purifiers that have been tested and certified by reputable organizations, such as NSF or WQA. These certifications ensure that the purifier meets specific performance and safety standards. Choose a certified purifier to ensure you are getting a reliable and effective product.