Top 10 Best aquatru water filter system in 2026

Last Updated - 6/23/2026

🏆Best Choice

AQUA TRU

AquaTru - Replacement 2 Stage Pre-Filter (Stages 1 & 2) for Countertop Reverse Osmosis Water Filter Purification System (AquaTru Classic, Connect & Under Sink AquaTru Water Purifier)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•𝐏𝐚𝐫𝐭 𝐀𝐓𝟐𝟎𝟎𝟏 𝐢𝐬 𝐍𝐨𝐭 𝐦𝐚𝐝𝐞 𝐟𝐨𝐫 𝐭𝐡𝐞 𝐀𝐪𝐮𝐚𝐓𝐫𝐮 𝐂𝐚𝐫𝐚𝐟𝐞: Specifically designed to fit in the AquaTru Countertop Water Filter Purification Systems (Classic and Smart) and the AquaTru Under Sink Model.
•Certified to NSF Standards Dual Replacement Filter combines the Sediment Pre-Filter and the Activated Carbon Pre-Filter into one AND removes odors and conditions the water and reduces sand, silt, sediment, rust and particles.
•Stage 1 (Sediment Pre-Filter) portion of this filter reduces sand, silt, sediment, rust and particles from water. Stage 2 (Activated Carbon Pre-Filter) of the filter removes more than 99% of chlorine and chloramines and odors.
•Only use AquaTru Replacement Filters in AquaTru Reverse Osmosis Water Filter Purification System for proper functionality. Filter life - This Pre-Filter (Stage 1 & 2, Part AT2001) will last six months.

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$33.95

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AQUA TRU

AquaTru - Replacement Reverse Osmosis Filter (Stage 3) for Countertop Reverse Osmosis Water Filter Purification System (AquaTru Classic, Connect & Under Sink AquaTru Water Purifier Filter)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•💧SPECIFICALLY DESIGNED to fit in the AquaTru Countertop Water Filter Purification Systems (Classic and Connect) and the AquaTru Under Sink Model. Not for AquaTru Carafe.
•💧CERTIFIED TO NSF STANDARDS The Reverse Osmosis membrane is designed to reduce toxic inorganic contaminants from the water down to 1/10000 of a micron including arsenic, lead, Chromium 6, nitrates and more!
•💧ONLY USE AquaTru Replacement Filters in AquaTru Reverse Osmosis Water Filter Purification System for proper functionality.
•💧FILTER LIFE This Filter (Stage 3) will last two years or 1200 gallons, whichever comes first.

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$59.95

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Purewell

Purewell 3-Stage 0.01μm Ultra-Filtration Gravity Water Filter System, NSF/ANSI 42&372 Certification, 304 Stainless Steel Countertop System with 2 Filters and Stand, Reduce 99% Chlorine, 2.25G, PW-OB

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•3-Stage Filtration - The Purewell gravity water filter system adopts a composite filter technology, can reduce most contaminants. The black carbon filter has passed authoritative NSF/ANSI 42 certification, it employs a 0.01μm hollow fiber UF membrane, a silver ion membrane and an activated carbon block to reduce chlorine and intercept rust, sediment, organic matter and heavy metals, etc. This water filter system has also passed authoritative NSF/ANSI 372 certification.
•Smaller Filter Pore Size - The filter pore size of Purewell gravity water filter is 0.01 microns so that it can filter out 99.99% tiny materials from the water while other brands' filter pore size is only 0.2 microns. The smaller filter pore size, the higher filtering accuracy. What's more, Purewell water filter system can maintain the optimal flow rate (4 gallon/hour) while the filter pore size is smaller.
•Complete Accessory Set: The system not only provides safe water but also adds a touch of style to your home with its 304 food-grade stainless-steel housing. This ensures a sturdy and long-lasting structure. The 304 stainless steel spigot that comes with the system fits the chamber perfectly, preventing any leaks. Additionally, a non-slip stand is included to enhance the user experience. These accessories are included in the package, you don't have to spend extra money on additional accessories.
•Energy Saving - Relying on the principle of gravity filtration, no electricity is needed. The gravity water filter system is divided into upper and lower chambers. The upper chamber can be filled with unfiltered tap water, the lower chamber will get clean water after filtered. Because it does not require electricity, it can be used indoors and outdoors. NOTICE: When the bottom chamber is full of filtered water, please do not add tap water to the top chamber or it will leak out.
•Long Lifespan and Replaceable - The two carbon filters (black) can provide up to 6000 gallons drinking water, the service life of a single filter element is 3000 gallons (According to different water quality, the lifespan of the filter elements would be a little different). But for optimum performance, the filter elements should be replaced every 6 months. NOTICE: The filter element DOES NOT lower TDS value.

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$138.99

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AQUA TRU

AquaTru Classic Replacement Filters for AQUA TRU Classic Countertop Reverse Osmosis Water Purifier (AquaTru Classic VOC FIlter (Green))

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•𝐍𝐨𝐭 𝐟𝐨𝐫 𝐀𝐪𝐮𝐚𝐓𝐫𝐮 𝐂𝐚𝐫𝐚𝐟𝐞. Specifically designed to fit in the AquaTru Countertop Water Filter Purification Systems (Classic and Connect) and the AquaTru Under Sink Model.
•Enhance: This activated carbon filter is designed to enhance the taste and prepare the water for consumption.
•Certified to NSF Standards Activated Carbon Block Carbon Filter removes inorganic compounds like rocket fuel, prescription drug residue and forever chemicals (PFOA & PFOS), leaving you with pure, great-tasting water.
•Only use AquaTru Replacement Filters in AquaTru Reverse Osmosis Water Filter Purification System for proper functionality.
•Filter life: This Filter (Stage 4) will last one year or 600 gallons, whichever comes first.

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$42.95

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AQUA TRU

AquaTru - Replacement VOC Filter with ph+ Mineral Boost (Stage 4) for AquaTru Classic, Connect & Under Sink AquaTru Water Purifier I 𝗡𝗼𝘁 𝗺𝗮𝗱𝗲 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗔𝗾𝘂𝗮𝗧𝗿𝘂 𝗖𝗮𝗿𝗮𝗳𝗲

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•𝗡𝗼𝘁 𝗺𝗮𝗱𝗲 𝗳𝗼𝗿 𝘁𝗵𝗲 𝗔𝗾𝘂𝗮𝗧𝗿𝘂 𝗖𝗮𝗿𝗮𝗳𝗲: Specifically designed to fit in the AquaTru Countertop Water Filter Purification Systems (Classic and Connect) and the AquaTru Under Sink Model. Part AT2004 is not made for the AquaTru Carafe.
•Instant Alkaline Water: Transforms your tap water into purified, alkaline water in minutes! When paired with your AquaTru, you can create mineralized alkaline water right from your home.
•Certified to NSF Standards: Activated Carbon Block Carbon Filter removes inorganic compounds like rocket fuel, prescription drug residue and forever chemicals (PFOA & PFOS), leaving you with pure, great-tasting water.
•Filter life: This Filter (Stage 4, Part AT2004) will last one year or 600 gallons, whichever comes first.
•Difference you can taste: If you love the mineral-rich taste of mountain spring water and the healthy benefits of alkaline water drops, this filter is made for you. It creates alkaline water and adds in healthy minerals like calcium and magnesium to quench your thirst.
•Only use AquaTru Replacement Filters in AquaTru Reverse Osmosis Water Filter Purification System for proper functionality.

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$59.95

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AQUA TRU

AquaTru Classic Countertop Water Filtration Purification System for PFAS & Other Contaminants with Exclusive Ultra Reverse Osmosis Technology (No Installation Required) | BPA Free (AquaTru Classic)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Is your water safe to drink? Studies continue to pour in regarding Toxins, Hormones, Microplastics, Cancer-linked contaminants, known Carcinogens and other toxins discovered in our Tap Water, Filtered Water…and yes, even Bottled Water. AQUATRU's patented Ultra Reverse Osmosis water filtration system is CERTIFIED to remove harmful contaminants.
•CERTIFIED NSF/ANSI Standards - Tested & certified by IAPMO to meet NSF/ANSI standards 41, 53, 58, 401, and P473 for water filters, which include 83 contaminants and PFAS “forever chemicals.”
•No plumbing or installation required - takes just minutes to set up. AquaTru’s Trusted RO countertop system costs considerably less than fully installed under-the-counter RO systems, while at the same time, delivering often Cleaner, Purer, and Better Tasting Water. Why waste money & add to landfills with bottled water (93% recently found to contain microplastics)?
•Long-Lasting Filters: AquaTru has affordable filters are made to last for 600-1200 gallons – that’s only a filter change every 6 mos. to 2 yrs.
•Quick change twist & seal filters come included with your first AquaTru water purifier and last from 6 months to 2 years. 1 set of filters replaces 4,500 plastic water bottles, so you can be freed from the hassle & cost of buying bottled water.

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$475.00

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AQUA TRU

AquaTru - Additional Clean Water Tank for Countertop Reverse Osmosis Water Filter Purification System

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•When attaching the tank back on the unit please ensure that the bottom of the tank and all surfaces of the unit are completely dry or the unit can leak or drip.
•Shatterproof and break resistant Plastic & BPA Free. Spill-resistant pour spout.
•Crystal clear ergonomic design serves as a pitcher for easy pouring, is great for refrigerator storage and comes with a convenient carrying handle.
•Only use AquaTru Genuine Replacement Filters in AquaTru Reverse Osmosis Water Purifier Systems.
•Get additional purified water tanks so you can have them handy around the house or office - keep one onf your AquaTru and a second one in the fridge.

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$49.95

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AQUA TRU

AquaTru Classic Alkaline Countertop Water Filter System for PFOA, PFOS & Other Contaminants with 4-Stage Ultra Reverse Osmosis Technology (No Installation Required) (AquaTru Classic Alkaline)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Alkaline Water - makes mineral-rich alkaline water with the VOC Carbon ph+ Mineral Boost water filter right from your kitchen tap water. It uses a proprietary blend of healthy minerals with our activated carbon to not only remove VOC contaminants, but also add healthy minerals and alkalize the water
•Certified NSF/ANSI Standards - Tested & certified by IAPMO to meet NSF/ANSI standards 41, 53, 58, 401, and P473 for water filters, which include 84 contaminants and forever chemicals (PFOA & PFOS)
•No Plumbing or Installation required - takes just minutes to set up. AquaTru’s Trusted & warrantied RO countertop system COSTS CONSIDERABLY LESS than fully installed under-the-counter RO systems, while at the same time, delivering often Cleaner, Purer, and Better Tasting Water. Why waste money & add to landfills with bottled water (93% recently found to contain microplastics)?
•Quick Change Twist & Seal Filters come included with your first AquaTru water purifier and last from 6 months to 2 years. 1 set of filters replaces 4,500 plastic water bottles, so you can forget about the hassle & cost of buying bottled water
•Cost-Effective and Environmentally Friendly: AquaTru’s alkaline water machine has affordable filters that are made to last for 600-1200 gallons – that’s only a filter change every 6 mos. to 2 yrs

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$460.00

$483.00

-5%

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AQUA TRU

AquaTru Classic Smart Countertop Water Filtration Purification System for PFAS & Other Contaminants with Exclusive Ultra Reverse Osmosis Technology (No Installation Required) | BPA Free

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•TRANSFORM TAP WATER - AquaTru water purifier has a patented 4-Stage Ultra Reverse OsmosisⓇ Technology that is certified to NSF/ANSI standards to remove 83 contaminants, including Lead, Chlorine, Fluoride, Nitrates, PFOA, PFOS and many more
•SMART TECHNOLOGY - Amazing app features include Precise Filter Usage, TDS (Total Dissolved Solids) Meters in both the Tap water and Clean water tanks, Water Consumption Tracking, and Total Money & Plastic bottles saved by using AquaTru water filter. Compatible with iOS and Android devices
•COST-EFFECTIVE and ENVIRONMENTALLY FRIENDLY: AquaTru’s affordable filters are made to last for 600-1200 gallons – that’s a filter change every 6 mos. to 2 yrs. Just one set of AquaTru’s water purifier filters makes the equivalent of 4,500 single-use, 16.9 oz plastic water bottles
•NO PLUMBING OR INSTALLATION required: Takes minutes to set up. AquaTru’s trusted & warrantied Reverse Osmosis water filtration system costs considerably less than fully installed under-the-counter RO systems and delivers clean, delicious tasting water without the extra cost or hassle
•EASY TO USE: Quick change twist-and-seal filters included with your first AquaTru Connect water purification system. Sleek, compact design purifies 1 gallon of tap water in 10-15 minutes. AquaTru water purifier systems are backed by our 30-day Satisfaction Guarantee

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$525.00

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AQUA TRU

AquaTru Under Sink Reverse Osmosis Water Filter System with Alkaline pH+ Filter | Certified to Remove Lead, Chlorine, Fluoride, PFOA, PFOS & More for Pure Great-Tasting Water

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Alkaline water- makes mineral-rich alkaline water with the VOC Carbon ph+ Mineral Boost water filter right from your kitchen tap water. It uses a proprietary blend of healthy minerals with our activated carbon to not only remove VOC contaminants, but also add healthy minerals and alkalize the water
•Certified NSF/ANSI Standards - Tested & certified by IAPMO to meet NSF/ANSI standards 41, 53, 58, 401, and P473 for water filters, which include 84 contaminants, microplastics, and PFAS “forever chemicals”
•Premium Long-Lasting, Easy-To-Change Filters - AquaTru’s affordable filters are made to last for 360-1200 gallons – that’s a filter change every 6 mos. to 2 yrs. AquaTru Under Sink Reverse Osmosis Water Purifier uses the same water filters as the AquaTru Countertop Purifiers (not including the Carafe)
•Quick change twist & seal filters come included with your first AquaTru water purifier and last from 6 months to 2 years. 1 set of filters replaces 4,500 plastic water bottles, so you can forget about the hassle & cost of buying bottled water
•Patent-pending technology —TruPure RO Sanitizer makes it easy to keep your AquaTru holding tank in pristine condition. Traditional under sink reverse osmosis systems make sanitation difficult to do, leaving the tank a potential breeding ground for bacteria, if not properly maintained

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$395.00

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