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Water Filtration Systems

10 Best Water Filtration Systems 2025 in the United States

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Waterdrop

Waterdrop 200-Gallon Long-Life Chubby 10-Cup Water Filter Pitcher with 4 Filters, NSF Certified, 5X Times Lifetime, Reduces Fluoride, Chlorine and More, BPA Free, Blue

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#1

Winner

9.9 score

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Brita

Brita Water Filter Pitcher for Tap and Drinking Water with 1 Standard Filter, Lasts 2 Months, 6-Cup Capacity, BPA Free, White

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Chosen by 1368 this week

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Waterdrop

Waterdrop 200-Gallon Long-Life Chubby 10-Cup Water Filter Pitcher with 4 Filters, NSF Certified, 5X Times Lifetime, Reduces Fluoride, Chlorine and More, BPA Free, Blue

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#2

9.8 score

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ZeroWater

ZeroWater 52-Cup Ready-Read 5-Stage Water Filter Pitcher Dispenser with 5-Stage 0 TDS Zero Water Filter – IAPMO Certified to Reduce Metals, Chlorine, Lead, Chromium, and Forever Chemicals PFOA/PFOS

Type of Filtration System: 5-stage ion exchange filtration
Filtration Capacity: 12.3 Liters
Flow Rate: slower than simpler filters
Contaminant Removal: removes lead, chromium, mercury, chlorine
Installation and Maintenance: pitcher-style; replace filter by TDS
Cost of Replacement Filters: can be pricey
Size and Design: 14.2"D x 9.38"W x 10.37"H

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30% OFF
#3

9.8 score

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Aqua-Pure

3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903, Reduces Sediment, Chlorine Taste and Odor, Heavy Duty, 100,000 Gallon

Type of Filtration System: Whole house system
Filtration Capacity: 100,000 gallons
Flow Rate: 20 gallons per minute
Contaminant Removal: Sediment, chlorine taste, odor
Installation and Maintenance: Quick-change, 1-inch connections, no tools
Size and Design: 25 inches tall, 4.5 x 4.5 x 25.2

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#4

9.6 score

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Aqua-Pure

Aqua-Pure 3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP902, Reduces Sediment, 5621101

Type of Filtration System: Whole House Water Filter
Filtration Capacity: 100,000 gallons
Flow Rate: 20 Gallons Per Minute
Contaminant Removal: Sediment
Installation and Maintenance: 1-inch inlet and outlet connections
Size and Design: 4.5 x 4.5 x 25.06 inches

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#5

9.5 score

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Aquasana

Aquasana Under Sink Water Filter - Reduces 99% of 78 Contaminants Including Chlorine & Lead from Tap Water - Claryum Direct Connect

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#6

9.4 score

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Aqua-Pure

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 Filtration System: Whole House Quick Change Filter
Filtration Capacity: 100,000 gallons
Flow Rate: 20 Gallons Per Minute
Contaminant Removal: sediment, chlorine, scale
Installation and Maintenance: user-friendly, 1” inlet/outlet connections
Cost of Replacement Filters: can add up over time
Size and Design: 4.5 x 4.5 x 25.2 inches

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14% OFF
#7

9.2 score

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SimPure

SimPure Y7P-BW UV Countertop Reverse Osmosis Water Filter, NSF/ANSI 58 Certified, 5 Stage RO Water Filtration System, Water Purifier for Home, 4: 1 Pure to Drain, BPA Free (No Installation Required)

Type of Filtration System: 5-stage RO and UV
Flow Rate: 0.29 GPM
Contaminant Removal: 99.99% of 1,000+ contaminants
Installation and Maintenance: No-installation design
Size and Design: 18"L x 8"W x 17"H

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#8

9.0 score

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Aquasana

Aquasana Countertop Water Filter System for Drinking Water - Clean Water Machine - Removes 97% of Chlorine from Tap Water - Compact Water Filtration for Kitchen - Filtered Water Dispenser

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#9

8.8 score

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PUR

PUR PLUS Vertical Faucet Mount Water Filtration System with 3-in-1 Lead Reducing Filter for Great-Tasting Filtered Tap Water, Lasts 100 Gallons, Fits Most Kitchen or Bathroom Faucets, Grey

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#10

8.6 score

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Brita

Brita Faucet Water Filter for Sink Water Filtration System, BPA-Free, Reduces Lead, Lasts Four Months or 100 Gallons, Includes 2 Filters, White

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6% OFF
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#2

ZeroWater 52-Cup Ready-Read 5-Stage Water Filter Pitcher Dispenser with 5-Stage 0 TDS Zero Water Filter – IAPMO Certified to Reduce Metals, Chlorine, Lead, Chromium, and Forever Chemicals PFOA/PFOS

9.8  score

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ZeroWater 52-Cup Ready-Read 5-Stage Water Filter Pitcher Dispenser with 5-Stage 0 TDS Zero Water Filter – IAPMO Certified to Reduce Metals, Chlorine, Lead, Chromium, and Forever Chemicals PFOA/PFOS

ZeroWater

9.8  score

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Rating
9.8
Type of Filtration System
Filtration Capacity
Flow Rate

Most important from
15092 reviews

Type of Filtration System
The 5-stage filtration system delivers impressively pure water, reducing total dissolved solids from exceptionally high levels to near zero, which is especially valuable in areas with hard or mineral-rich water.
Filtration Capacity
The large multi-stage filter is more expensive and bulkier than standard filters, but this size is necessary to achieve such thorough purification and supports the pitcher’s generous 52-cup capacity.
Flow Rate
Flow rate is slower compared to simpler pitcher filters, requiring patience when filling or dispensing, especially during refill since the lid must be removed to add water.
Contaminant Removal
While the pitcher excels at removing nearly all dissolved solids, it also strips out beneficial minerals and fluoride, so it’s best suited for drinking water rather than cooking or other uses where some minerals are desirable.
Installation and Maintenance
The built-in TDS meter provides real-time feedback on water purity and filter life, making it easy to know exactly when to replace the filter and ensuring consistent water quality.
Size and Design
The dispenser tap on the front adds convenience by allowing easy access to water without lifting the pitcher from the refrigerator, though the filled pitcher can be quite heavy to handle.

The ZeroWater 52-Cup Ready-Read Water Filter Pitcher is designed to provide highly purified drinking water thanks to its 5-stage ion exchange filtration system, which effectively removes most dissolved solids including metals like lead, chromium, and mercury, as well as chlorine and harmful chemicals such as PFOA/PFOS. This makes it a strong choice for anyone concerned about water quality and contaminants. Its large 52-cup (12.3 liters) capacity is convenient for families or those who want to reduce frequent refills. A handy feature is the built-in TDS meter that measures water purity in real time, letting you know exactly when the filter needs replacing.

The pitcher is made of BPA-free plastic, which is safer for daily use, and its size is moderate, fitting comfortably on most kitchen counters or in refrigerators. Installation is simple since it’s a pitcher-style system, and maintenance mainly involves replacing the filter when the TDS meter indicates. However, the flow rate may be slower compared to some simpler filters due to the advanced 5-stage process, which might be a consideration if you need quick access to large amounts of filtered water. Also, replacement filters for ion exchange systems like this can be on the pricier side, so ongoing costs should be considered.

This pitcher is highly suitable for users looking for thorough contaminant removal in a convenient, easy-to-use format without the need for complex installation.

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Rating
9.8
Type of Filtration System
Filtration Capacity
Flow Rate

Most important from
15092 reviews

Type of Filtration System
The 5-stage filtration system delivers impressively pure water, reducing total dissolved solids from exceptionally high levels to near zero, which is especially valuable in areas with hard or mineral-rich water.
Filtration Capacity
The large multi-stage filter is more expensive and bulkier than standard filters, but this size is necessary to achieve such thorough purification and supports the pitcher’s generous 52-cup capacity.
Flow Rate
Flow rate is slower compared to simpler pitcher filters, requiring patience when filling or dispensing, especially during refill since the lid must be removed to add water.
Contaminant Removal
While the pitcher excels at removing nearly all dissolved solids, it also strips out beneficial minerals and fluoride, so it’s best suited for drinking water rather than cooking or other uses where some minerals are desirable.
Installation and Maintenance
The built-in TDS meter provides real-time feedback on water purity and filter life, making it easy to know exactly when to replace the filter and ensuring consistent water quality.
Size and Design
The dispenser tap on the front adds convenience by allowing easy access to water without lifting the pitcher from the refrigerator, though the filled pitcher can be quite heavy to handle.
#3

3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903, Reduces Sediment, Chlorine Taste and Odor, Heavy Duty, 100,000 Gallon

9.8  score

3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903, Reduces Sediment, Chlorine Taste and Odor, Heavy Duty, 100,000 Gallon

Aqua-Pure

9.8  score

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Rating
9.8
Type of Filtration System
Filtration Capacity
Flow Rate

Most important from
2222 reviews

Type of Filtration System
Even though it functions as a water conditioner/descaler rather than a softener, it has a significant softening effect on the water.
Filtration Capacity
Using a sediment filter in front of the AquaPure system can significantly extend the filter's lifespan.
Flow Rate
Reduced water pressure by 5-10%, but this may improve over time as the descaler loosens lime buildup in pipes.
Contaminant Removal
After installation, the water smell was completely gone by the next day and has stayed odor-free for months.
Installation and Maintenance
The filter changing method is by far the best available, making maintenance a breeze.

The 3M Aqua-Pure Whole House Sanitary Quick Change Water Filter System AP903 is designed to efficiently reduce sediment, chlorine taste, and odor from your home's water supply. It's a whole house filtration system, meaning it filters water for the entire house, ensuring clean water from every tap. One of the standout features is its high filtration capacity of 100,000 gallons, making it suitable for larger homes.

The system's quick-change design allows for easy filter replacements without the need for tools, which is a big plus for convenience. Installation is straightforward with 1-inch inlet and outlet connections, and it supports high flow rates up to 20 gallons per minute, meeting the water pressure demands of most households.

The durable construction and NSF Standard 42 certification provide added reassurance about its quality and safety. However, considering its size (25 inches tall), it might be a bit bulky for smaller spaces. This system is ideal for larger homes needing a reliable, easy-to-maintain solution for better water quality, handling both municipal and well water effectively.

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Rating
9.8
Type of Filtration System
Filtration Capacity
Flow Rate

Most important from
2222 reviews

Type of Filtration System
Even though it functions as a water conditioner/descaler rather than a softener, it has a significant softening effect on the water.
Filtration Capacity
Using a sediment filter in front of the AquaPure system can significantly extend the filter's lifespan.
Flow Rate
Reduced water pressure by 5-10%, but this may improve over time as the descaler loosens lime buildup in pipes.
Contaminant Removal
After installation, the water smell was completely gone by the next day and has stayed odor-free for months.
Installation and Maintenance
The filter changing method is by far the best available, making maintenance a breeze.

Buying Guide for the Best Water Filtration Systems

Choosing the right water filtration system is crucial for ensuring that you and your family have access to clean, safe drinking water. The right system 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 filtration system.
Type of Filtration SystemThere are several types of water filtration systems, including activated carbon filters, reverse osmosis systems, UV filters, and distillation systems. Each type has its own strengths and is effective against different contaminants. Activated carbon filters are great for removing chlorine and improving taste, while reverse osmosis systems are effective against a wide range of contaminants, including heavy metals and nitrates. UV filters are excellent for killing bacteria and viruses, and distillation systems remove most contaminants by boiling and condensing water. Choose a system based on the specific contaminants you need to remove and your water quality.
Filtration CapacityFiltration capacity refers to the amount of water a system can filter before the filter needs to be replaced. This is usually measured in gallons. Systems with higher capacities are more convenient for larger households or for those who use a lot of filtered water. For small households or occasional use, a lower capacity system may be sufficient. Consider your daily water consumption and choose a system that can handle your needs without frequent filter changes.
Flow RateFlow rate is the speed at which water is filtered and dispensed, typically measured in gallons per minute (GPM). A higher flow rate means water is filtered more quickly, which is important for larger households or for use in situations where you need a lot of water quickly, such as cooking or filling a bathtub. For drinking water or small household use, a lower flow rate may be adequate. Assess your water usage patterns to determine the appropriate flow rate for your needs.
Contaminant RemovalDifferent filtration systems are designed to remove different types of contaminants, such as chlorine, lead, bacteria, viruses, and other harmful substances. It's important to know what contaminants are present in your water supply, which you can find out through a water quality report or testing kit. Once you know what needs to be removed, choose a filtration system that is certified to remove those specific contaminants. Look for certifications from organizations like NSF International to ensure the system meets industry standards.
Installation and MaintenanceSome water filtration systems are easy to install and maintain, while others may require professional installation and more frequent maintenance. Under-sink and countertop systems are generally easier to install and maintain, while whole-house systems may require more complex installation. Consider your DIY skills and willingness to perform regular maintenance when choosing a system. If you prefer a hands-off approach, look for systems with longer-lasting filters and minimal maintenance requirements.
Cost of Replacement FiltersThe cost of replacement filters can add up over time, so it's important to consider this ongoing expense when choosing a water filtration system. Some systems have more affordable filters, while others may have higher costs due to the complexity of the filtration process. Check the frequency of filter replacement and the cost of each filter to estimate the long-term cost of maintaining the system. Choose a system with replacement filters that fit within your budget and are readily available.
Size and DesignThe size and design of the water filtration system can impact where it can be installed and how it fits into your home. Countertop and pitcher filters are compact and portable, making them ideal for small spaces or renters. Under-sink and whole-house systems are larger and require more permanent installation. Consider the available space in your home and choose a system that fits comfortably without disrupting your living area. Additionally, some systems come in sleek designs that can complement your kitchen decor.

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