10 Best Reverse Osmosis Water Filtration Systems of 2025

Tested and Reviewed: Top 10 Reverse Osmosis Water Filtration Systems deals with expert ratings from 8.1 to a perfect 10

June 2025 Edition

Editor's Choice

9.7

Bluevua

Bluevua RO100ROPOT-Lite(UV) Countertop Reverse Osmosis Water Filter System, 7-Stage Purification with UV and Remineralization, 3:1 Pure to Drain, Portable Water Purifier (Blue)

Free Shipping

Editor's bottom line:

“This reverse osmosis water filtration systems is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COUNTERTOP DESIGN WITH PREMIUM-QUALITY CARAFE AND ENHANCED FILTRATION: This plug-and-play water purifier requires no installation or plumbing, simplifying access to pure water. It features a high borosilicate glass carafe for safe, pollutant-free storage and a 7-stage advanced countertop RO system, including UV light and remineralization, enhancing water purity while enriching it with essential minerals for balanced taste and health benefits.
ONE-TOUCH LED EASE AND SMART DISPLAY: Experience the convenience of fresh, pure water with the smart LED control panel. Enjoy instant hydration while effortlessly monitoring and receiving filter alerts. Select the volume of water that fits your hydration needs and let the system do it automatically. Visualize the water quality in real time, ensuring that you remain informed about the purity of the water you consume at all times.
RAPID AND EFFICIENT WATER DELIVERY: Achieve filtered water effortlessly, without the hassle of plastic waste or bottled water. The improved design is 375% more effective than traditional models, featuring a 3:1 ratio of filtered water to waste and requiring filter replacement just once a year, at only $0.22 per day, with a simple 3-second twist installation.
SPACE-SAVING DESIGN AND YEARLY MAINTENANCE: The ROPOT-Lite(UV) is engineered for efficiency and convenience, offering 7-stage UV reverse osmosis system in a compact form, ideal for 1-2 people, and now supports easy filter replacement once annually. Certified by WQA against NSF/ANSI/CAN 372 for lead-free and tested by SGS, it ensures high water quality. Enjoy pure, healthy water that fits seamlessly into your living space.
INNOVATIVE FRUIT-INFUSED WATER FEATURE: Elevate your hydration with the glass infuser included, designed to fit perfectly into the carafe for creating delicious fruit-infused water. Along with the carafe's timeline feature, encourages healthy hydration habits by making it easy to track and enjoy your daily water intake with a flavorful twist.

Show Price

Picked by 264 people today

9.5

Save 17%

iSpring

iSpring RO500AK-BN NSF Certified Tankless RO Reverse Osmosis Water Filtration System, 500 GPD Fast Flow with Natural pH Alkaline Remineralization, Brushed Nickel Faucet, 2:1 Pure to Drain Ratio

17% OffFree Shipping

Main Highlights

[NSF 58 Certified] iSpring RO500AK-BN tankless reverse osmosis system is NSF 58 certified for TDS reduction. Scan the QR for the NSF online test report.
[Next Generation RO System] iSpring RO500AK-BN is the next generation reverse osmosis filtration system. Just like you trust iSpring RCC7 series RO systems, you can count on the RO500AK-BN that has raised the bar for water purification. Experience less waiting time when you fill up your cup, pitcher, or cooking pots with clean and tasty water. With a fast flow rate of up to 0.4 gallons per minute, this RO system can satisfy the water needs of families, offices, coffee shops, restaurants, and more
[Superb Filtration Performance] With its first-stage, a 2-in-1 composite Sediment and Carbon Block filter, second-stage featuring an advanced RO Membrane, the RO500AK-BN effectively removes up to 99% of over 1,000 contaminants, including lead (up to 98% removal), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. In the third stage, a Carbon Alkaline Filter made with high-quality coconut shell activated carbon and minerals further polishes the filtered RO water, balances pH levels, and enhances taste by adding essential minerals back into the water.
[Economical and Ecological Choice] With an exceptional pure water to wastewater ratio (up to 2:1), RO500AK-BN saves water waste by up to 400% compared to traditional RO systems. This industry-leading pure-to-waste ratio contributes to reduced water bills and less water going down the drain. This system also has an automatic self cleaning mode. If this system is not used after 24 hours, it will rinse the RO MEMBRANE for 20 seconds to prolong its life. Featuring a sleek tankless look, RO500AK-BN frees more space in your under-sink storage area and adds aesthetic pleasure to your kitchen.
[500 GPD Fast Water Flow] The RO500AK-BN RO system produces 500 gallons of filtered water per day. With a fast and stable water flow rate, this RO system fills an 8oz cup with water in 10 seconds, which is ideal for drinking water. The RO500AK-BN RO water filtration system also meets the water needs of big families and companies. With a detailed instruction manual, it is easy to install and maintain.
[Hassle-Free] Feed water adapter fits 1/2 or 3/8 inch pipes. Thanks to its reinforced integrated water route design, and leak-free DIY installation, filter changes are greatly simplified, much easier, and truly time-saving. No need to shut off the water supply when changing filters. Filter changes can be completed within seconds. Backed by a 30-day money-back guarantee, 1-year manufacturer warranty, and extended warranty upon registration. Lifetime customer service and tech support from iSpring in Atlanta, GA
F7-RO500AK : Individually wrapped 2-year high capacity filter replacement cartridge pack for RO500AK Tankless RO Reverse Osmosis Water Filtration System

Show Price

9.5

Save 13%

FS-TFC

FS-TFC 5-Stage Reverse Osmosis Water Filtration System 100GPD Fast Flow Plus Extra 4 Filter for Free (FS-RO-100G-A)

13% OffFree Shipping

Main Highlights

Supreme quality - designed, and assembled to guarantee water safety & your health.Remove Rate up to 99.999%including chlorine, taste, odor, VOCs, as well as toxic fluoride, arsenic, lead, nitrates, heavy metals and 1000+ contaminants.Experience clean, safe, good-tasting water every time you turn on the faucet. Enjoy crystal clear ice cubes, fresher tea and coffee, better tasting foods, healthier baby formula even better than most bottled water.
Mini Size -High Flow Designed :Developed for household and commercial use, This Water Filtration System can be installed in your kitchen, bathroom, RV, or office .The tested full flow rate is 18L per hour at 60 Psi,means you can get 1 cup (200ml) of pure,fresh and great tasting water in 5 seconds.Completely satisfied with your daily water needs.
Easy, do-it-yourself installation, Fits under a standard kitchen sink, with all parts included and clear, well-organized instructions and videos. Dont need waste money on professional installation. quick and easy-to-understand design means you can install and understand everything about your new water filtration system.
Money-saving:The Reverse Osmosis System works without electricity and 1: 1 low drain ratio,thereby reducing the amount that you spend on electricity and water.On average, by spending only $50 per year (13 cents per day) for the filter replacement, you and your family can enjoy safe and clean water.
Provides you the ultimate satisfaction and peace of mind with our lifetime support and 2 year manufacturer warranty with registration.

Show Price

9.2

EXPRESS WATER

Express Water RO5DX Reverse Osmosis Filtration NSF Certified 5 Stage RO System with Faucet and Tank – Under Sink Water Plus 4 Filters – 50 GPD, 14 x 17 x 5, White

Free Shipping

Main Highlights

Reverse Osmosis Water Filter: Experience what water should taste like with the Express Water reverse osmosis water filtration system reducing up to 99.99% of Lead, Chlorine, Fluoride, PFAs/PFOs, Calcium, Arsenic, and more.
Water Purification System: Drink the healthiest water on Earth. All our water filters are specially engineered to work together, producing the safest and best tasting water youll ever drink
Under Sink Water Filter: Dont waste money on professional installation. Express Waters quick and easy-to-understand design means you can install and understand everything about your new water filtration system
Under Sink Water Filter System: No need to mess with refilling or activating your water filter, Express Waters water filtration systems automatically fill your water tank with high quality drinking water
Leak Detection: Each under sink water filter includes an emergency leak stop detector that shuts off water flow when it detects unwelcomed moisture
Help Has Arrived - Support from experts who can answer any of your questions about your homes water
Love your water - Environmentally friendly coconut carbon filters give unequalled quality and a clear natural taste

Show Price

9.0

Save 18%

BEATYL

Reverse Osmosis Water Filter, Water Purifier, 8-Stage RO Filtration System, Portable Water Purifier Countertop for Kitchen, Office, RV, No Installation, Gray

18% OffFree Shipping

Main Highlights

Intelligent Display for Precise Monitoring: This reverse osmosis water filter features an intelligent screen that allows you to monitor water quality, display Total Dissolved Solids (TDS), and has functions like filter life monitoring, water volume setting, cleaning system, and filter reset
8-Stage Filtration for Safe Drinking: This reverse osmosis system countertop utilizes a 8-stage filtration and purification process that transforms it into pure, healthy drinking water, ensuring the safety of you and your family
Efficient 4:1 Pure to Drain: The water filter system has 4:1 pure to drain ratio to reduce waste. Moreover, the wastewater can be retained for various household uses, such as watering plants and mopping the floor
No Installation Required: This RO water filtration system is built for convenience with zero installation. Just place the removable kettle and water tray, plug in, turn on the power, fill the tank, and gently touch the water outlet button to start water production
Portable Kettle for Convenience: The filtered water is stored in a portable kettle. You don't need to fetch water from the water purifier every time. Just place the kettle within reach. It can be placed in various scenarios such as the living room, office, bedroom, or RV
Ample Water Storage: Our filtration system come with a large 5.4-liter capacity tank that requires minimal maintenance and reduces the need for frequent refills
Easy to Clean: Simple and straightforward cleaning process, allowing you to maintain the system's hygiene with minimal effort
Taste improvingThe filtration system not only purifies water but also significantly improves its taste. It effectively removes unpleasant odors and flavors, leaving you with refreshingly delicious and pure-tasting water
Durable Quality: Constructed with high-quality materials to withstand daily wear and tear, providing long-term reliable performance
Quick Water Production: Delivers filtered water rapidly, ensuring you don't have to wait long to quench your thirst or use it for cooking

Show Price

8.8

APEC WATER

APEC Water Systems ROES-50 Essence Series Top Tier 5-Stage WQA Certified Ultra Safe Reverse Osmosis Drinking Water Filter System

Free Shipping

Main Highlights

Supreme quality - designed, engineered, and assembled in USA to guarantee water safety & your health.
Only technology to remove up to 99% of impurities including arsenic, chlorine, lead, fluoride, heavy metals, and 1000+ impurities. Max Total Dissolved Solids - 2000 ppm. Feed Water Pressure 40-85 psi
WQA Certified System. Premium long-lasting filters used to treat tap water, well water. Provide unlimited clean, refreshing crisp tasting water superior to bottled water
America's No.1 rated water filter brand with 20 years of success guaranteeing trouble free, noise-free system for long lasting, dependable, pure drinking water.
System comes with 100% lead-free designer faucet, plus Certified JG premium grade tubing and parts to provide safe, impurity-free pure water. Pipe Size:1/4 inches

Show Price

8.6

Save 18%

iSpring

iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

18% OffFree Shipping

Main Highlights

PATENTED DESIGN The top-mounted fastener allows for easy countertop installation entirely from above, eliminating the hassle of tightening the nut from underneath the sink.
MINERAL BOOST The patent-pending natural mineral AK stage delivers spring water with a balanced, healthy pH and multiple essential minerals.
SEE WHATS CAUGHT The transparent first-stage filter housing makes it easy to monitor contaminant buildup, ensuring timely filter changes.
NSF 58 CERTIFIED RO SYSTEM Unlike other brands that lack NSF certification or full system certification, our RCC7AK is certified to NSF/ANSI 58 and 372 standards for the entire water filtration system.
EFFECTIVE FILTRATION Reduces TDS (93-98%), PFAS (96-99%), Chlorine (95-99%), Asbestos (>99.7%), Barium (>98.4%), Cadmium (>98.8%), Chromium (>99.2%), Copper (>97.8%), Fluoride (>97.4%), Lead (>98.9%), Selenium (>99.0%), and over 1,000 other contaminants.
EASY INSTALLATION The RO water system features a DIY-friendly design with quick-fitting connections, a clear manual, and step-by-step videos for a hassle-free setup.
TRUSTWORTHY SUPPORT Americas favorite RO brand, backed by lifetime technical support in Atlanta, GA, ensuring expert assistance whenever you need it.
CONVENIENT REPLACEMENT FILTERS - Easy access to replacement filter sets: F4AK (6-Month), F9K (1-Year), F19K75 (2-Year), and F28K75 (3-Year).

Show Price

Best Value

8.3

Save 38%

Aigerri

Countertop Reverse Osmosis System Water Filter with UV, 5:1 Pure to Drain, 5 Stage RO Water Filtration, Portable No Installation Water Filtration Systems, Countertop Filtration for Home, Off White

38% OffFree Shipping

Main Highlights

ADVANCED REVERSE OSMOSIS FILTRATION: Against NSF/ANSI 58. Experience superior water quality with advanced reverse osmosis technology. This system effectively removes contaminants, including heavy metals, chlorine, and sediments, ensuring that you drink only the cleanest water.
EFFICIENT 5:1 PURE TO DRAIN RATIONM: Reduce your environmental impact with an impressive 5:1 pure to drain ratio. For every gallon of purified water produced, only one gallon is wasted, making it a sustainable choice for your daily hydration needs.
5L LARGE CAPACITY: Aigerri Countertop Reverse Osmosis System have 5L raw water tank, 2L pure water tank and includs 2 filters for free.It goes through fast twist filter cartridges provide 529 gallons of purified water (approximately 6000 bottled water).
UV PURIFICATION SYSTEM: Aigerri purification system combined with 5-Stages 0.0001m RO Filtration System, can take water purification to next level, effectively destroying 99.99% of microorganisms, bacteria, germs more thorough sterilization from your water.
NO INSTALLATION REQUIRED: Forget about complicated installations! This water purifier is ready to use right out of the box. Simply plug it in, and you can start enjoying clean, filtered water in minutes. Simple operation with a user-friendly interface for effortless access to purified water.

Show Price

8.1

Waterdrop

Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W

Free Shipping

Main Highlights

/ & - & & : & & ; Two filters are included in the package. Search "WD-G2-W" for replacement filters.
& :The G2 system is certified by / for lead-free materials. The G2 RO System adopts a composite filter result in more effective filtration. Our RO system can reduce TDS, PFAS, PFOA, PFOS, vinyl chloride, monobutyl ether, according to reverse osmosis membrane technical manual.
: : The Waterdrop G2 reverse osmosis system offers a fast water flow rate of up to 400 GPD. Get a cup of filtered water in about 12 seconds, satisfying your needs while saving time. Compared to the ordinary RO system, the Waterdrop RO system always has a stable water flow. This tankless RO has a low drain ratio of 1:1 and saves water waste by 300%.
: The tankless design ensures the safety of your familys drinking water. It also saves over 70% more under-sink storage space than does the ordinary RO system. Note that this reverse osmosis system requires under-sink electricity.
: The advanced integrated design of the electrical and water circuits reduces leakage. The airtight housing reduces noise, while the process of installing and replacing the filter is faster and more convenient than with other filters. Due to the filters twist-and-pull design, you can replace them in 3 seconds. The installation of the RO System takes less than 30 minutes. NOTE: An electrical outlet and drilling holes is required to operate it.

Show Price

8.1

Waterdrop

Waterdrop G3P600 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet

Free Shipping

Main Highlights

: Waterdrop G3P600 reverse osmosis system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material. Also it has been tested and certified against NSF 42 to reduce chlorine, bad taste and odor. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it meets the EU Standards and UKCA Standards for safety.
- : Tested by official third-party laboratory (SGS), the reverse osmosis system can effectively reduce TDS, chromium, PFAS, radium, fluoride, arsenic salt, iron, calcium, particles, chloride, chlorine and radioactive substances in your tap water. And our RO water filter system can reduce chemicals such as vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol, according to the reverse osmosis membrane technical manual.
: The tankless reverse osmosis system is built with a smart display faucet. For instance, the TDS monitor tells you the quality of your filtered water, while the filter life tracker shows how soon you need to replace your filter.
, : : As an upgraded reverse osmosis system, this reverse osmosis water system produces 600 gallons of filtered water per day. By its low drain ratio, this system can produce only one cup of waste water for every two cups of pure water produced. Furthermore, with a fast and stable water flow rate, this RO system fills a 8 oz cup of water in 8 seconds, which is ideal for drinking and washing vegetables.
: Waterdrop G3P600 reverse osmosis system has a stylish look. This tankless design saves 70% under sink space. You can change a filter in 3 seconds without moving the system or using any tools. Note: This reverse osmosis system requires under-sink electricity.
Please measure your cabinet dimensions to ensure that the cabinet size is larger than the product size. The product size is ." ." .".

Show Price

Our Best Overall Choice

Best Choice

9.7

Bluevua

Bluevua RO100ROPOT-Lite(UV) Countertop Reverse Osmosis Water Filter System, 7-Stage Purification with UV and Remineralization, 3:1 Pure to Drain, Portable Water Purifier (Blue)

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

COUNTERTOP DESIGN WITH PREMIUM-QUALITY CARAFE AND ENHANCED FILTRATION: This plug-and-play water purifier requires no installation or plumbing, simplifying access to pure water. It features a high borosilicate glass carafe for safe, pollutant-free storage and a 7-stage advanced countertop RO system, including UV light and remineralization, enhancing water purity while enriching it with essential minerals for balanced taste and health benefits.
ONE-TOUCH LED EASE AND SMART DISPLAY: Experience the convenience of fresh, pure water with the smart LED control panel. Enjoy instant hydration while effortlessly monitoring and receiving filter alerts. Select the volume of water that fits your hydration needs and let the system do it automatically. Visualize the water quality in real time, ensuring that you remain informed about the purity of the water you consume at all times.
RAPID AND EFFICIENT WATER DELIVERY: Achieve filtered water effortlessly, without the hassle of plastic waste or bottled water. The improved design is 375% more effective than traditional models, featuring a 3:1 ratio of filtered water to waste and requiring filter replacement just once a year, at only $0.22 per day, with a simple 3-second twist installation.
SPACE-SAVING DESIGN AND YEARLY MAINTENANCE: The ROPOT-Lite(UV) is engineered for efficiency and convenience, offering 7-stage UV reverse osmosis system in a compact form, ideal for 1-2 people, and now supports easy filter replacement once annually. Certified by WQA against NSF/ANSI/CAN 372 for lead-free and tested by SGS, it ensures high water quality. Enjoy pure, healthy water that fits seamlessly into your living space.
INNOVATIVE FRUIT-INFUSED WATER FEATURE: Elevate your hydration with the glass infuser included, designed to fit perfectly into the carafe for creating delicious fruit-infused water. Along with the carafe's timeline feature, encourages healthy hydration habits by making it easy to track and enjoy your daily water intake with a flavorful twist.

Show Price

Related Deals You Might Like for Reverse Osmosis Water Filtration Systems

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)

Show PriceView

Aquatic Life RO Buddie 3-Stage Hydroponic Reverse Osmosis Water Filter System RO Filtration Unit, 75 GPD

Show PriceView

Stokk T1 Lite UV Reverse Osmosis Water Filter Countertop, Reverse Osmosis System with Carafe Alkaline Boost, 6-Stage RO Water Filtration System, NSF/ANSI 58&372, Reduce TDS PFAS Water Purifier (White)

11% Off

Show PriceView

PHILIPS Countertop Reverse Osmosis Water Filter Dispenser, 5 Stages RO Water Filtration System Purifier with Aquaporin Technology Tested by NASA, 3:1 Pure to Drain, NSF/ANSI 372 Certified, Reduce TDS

Show PriceView

Ecoviva Under Sink Reverse Osmosis Water Filtration System, 8-Stage RO Filter, 600 GPD, High Efficiency, Alkaline Mineral Boost, Easy Installation, NSF/ANSI 58 Certified

10% Off

Show PriceView

iSpring RCC7P-AK, 6-Stage Reverse Osmosis System Under Sink Alkaline Water Filter and Pump, RO Drinking Water Filtration System, Patented Top-Mounted Faucet Design for Easy Installation

12% Off

Show PriceView

KOVIET Reverse Osmosis System, 10-Stage 600 GPD Tankless Reverse Osmosis Water Filter, Under Sink RO Water Filtration System with Smart LED Faucet, NSF/ANSI 42 & 58 Certified, 3:1 Pure to Drain

12% Off

Show PriceView

iSpring RCC1UP-AK, 100 GPD 7-Stage Reverse Osmosis Under Sink Water Filtration System with Boost Pump, Alkaline Remineralization and UV Filter, Patented Top-Mounted Faucet Design for Easy Installation

26% Off

Show PriceView

Waterdrop G2P600 Reverse Osmosis System, 600 GPD Tankless RO Water Filter System, Under Sink RO System, 7 Stage Filtration, 2:1 Pure to Drain, Reduce TDS, FCC Listed, USA Tech

Show PriceView

SimPure Alkaline UV Reverse Osmosis System, NSF/ANSI 58 Certified, Tankless RO Water Filter System 400 GPD, pH+ Remineralization Water Filtration Under Sink, BPA Free, Built-in Pump

Show PriceView

Deals are Live

Special Amazon deal ends in: