10 Best 5 stage reverse osmosis in Canada

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Last Updated - 2026/04/02

Best Choice

01
iSpring

iSpring RCC7, NSF Certified, High Capacity Under Sink 5-Stage Reverse Osmosis Water Filter, RO Drinking System, 75 GPD, Brushed Nickel Faucet, Patented Top-Mounted Faucet Design for Easy Installation

9.9 Tech Support

9.9 Easy to build

9.5 Taste
Main highlights

[MAINTENANCE & REPLACEMENT SCHEDULE]: Premium quality components ensure highest reliability and low maintenance for many years to come. Clear see-through 1st stage housing of the under sink water filter system makes filter inspection a snap. It is recommended to replace the three pre-filters: every 6 months, RO membrane: every 2-3 years, GAC filter: every 12 months. The replacement filter set can be found in the product details below.
[EASY DO IT YOURSELF INSTALLATION]: Typically in a couple of hours. Refer to manual and our YouTube videos to install this RO filtration system at the main water supply to get clean and healthy water for the entire family. Filter wrench included to make routine filter changes easy and quick. For leak-free installation, simply push tubing ½ inch deep into quick-fitting connectors and lock - no threading pipes needed. 4 gallon metal pressurized tank with up to 3.2 gallon holding capacity.
[CERTIFIED TO NSF/ANSI 58]: High Capacity Reverse Osmosis water filtration for safer, healthier water. This under sink mounted water filter and water softener removes up to 99% of over 1, 000 contaminants, including lead (removes up to 98% of lead), chlorine, fluoride, arsenic, asbestos, calcium, sodium, and more. Features a beautiful European-designed brushed nickel all-metal faucet.
[BENEFITS]: Fits under a standard kitchen sink. This water filter for sink helps you 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. Three pre-filters to remove large contaminants and protect RO membrane. RO filter to remove contaminants down to 0. 0001 microns; fine GAC filter to provide final polishing to the purified water.
[100% SATISFIED CUSTOMERS]: RCC7 is backed by iSpring with a 1-year manufacturer warranty upon registration, and lifetime personalized support from Atlanta, GA USA.This RO under sink water system is to deliver endless bottled quality drinking water right in your home for many years to come, eliminating plastic bottles.
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9.8

Exceptional

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02
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 15 x 5, White

10% Off

9.7 worth the money

9.5 Easy installation

9.5 Taste
Main highlights

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 you'll ever drink
Under Sink Water Filter: Don't waste money on professional installation. Express Water's 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 Water's water filtration systems automatically fill your water tank with high quality drinking water
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, Nitrates, Calcium, Arsenic, and more.
On Demand Support: Support from experts who can answer any of your questions about your new water filter
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 home's water
Customizable RO Water Filter System: Express Water home water filtration systems are fully upgradable and customizable with quick connecting fittings. Try additional filtration attachments including UV Water Filter, Alkaline Water Filter, Deionization Water Filter, and more
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9.6

Exceptional

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03
Geekpure

Geekpure 5 Stage Reverse Osmosis Drinking Water Filter System 75 GPD - with Extra 7 Filters

9.3 Taste

9.1 worth the money

8.9 Easy installation
Main highlights

System comes with high quality quick connect fittings, color coded tubes, and installation manual for an easy DIY experience, No need professional installation, you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.1 year manufacturer warranty, no need registration
System Capacity 75 gallons per day @ 60 psi. Tank Capacity 2.8 gallon, Fits most under sink cabinets, smart size ensures you get pure water every time. RO tube size: 1/4 inches and 3/8 inches. The ratio of pure water and waste water is 1:2. Feed Water Condition: Water Pressure: 40 - 100 psi, Temperate: 40-110°F/5-45°C, PH: 3.0 -11.0, Max TDS: 2000 ppm tap water or well water
Premium quality components ensure high reliability and low maintenance for many years. All tubes, quick push fittings, storage tank, and RO membrane are NSF certificated, to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home
Plus extra 7 Filters, Premium long-lasting replacement filters and parts are universal compatible and standard size.
Advanced Reverse Osmosis Technology - Filter Precision 0.0001 micron, Removes up to 98% of contaminants including arsenic, lead, fluoride, mercury, heavy metals and 1000+ contaminants, Experience fresher healthier baby formula, tea and coffee, better tasting foods and crystal clearer ice cubes, great tasting even better than most bottled water
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9.3

Excellent

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Value for Money

04
COMFEE'

COMFEE’ CMP10 5-Stage Reverse Osmosis System, NSF Certified Water Filter for Under Sink, Ultra Safe Drinking Water Filtration System, Leak-Free RO System, 75 GPD

16% Off
Main highlights

[ Excellent Sealing & Easy Installation ]: The double O-Rings offer excellent sealing for leak-free filter housing connection and the quick-fit connectors for easy pipe connection. By using the step-by-step written instruction and tutorial video, the installation of COMFEE’ 5 stage reverse osmosis system will be simple and only requires basic plumbing knowledge.
[ Certified & Lead-Free Materials ]: The COMFEE’ water filter system uses lead-free materials, certified by NSF372, in all water-contacting parts of the purification system, including the water faucet, and water path, and water tank. COMFEE' water filtration system is ideal for people who want lead-free water right at home. Note: If the water pressure is below 0.25Mpa and the water temperature is below 25℃, the GPD will be reduced to 50.
[ American Professional Customer Service ]: As one of the most customer-centric companies in the world, COMFEE' commits to giving the highest level of product and service to every person. Call us anytime when you have any questions, our American professional customer service team will give you a fast response and solution.
[ 20-Year Professional Experience ]: COMFEE’ has 20 years of experience as a professional water treatment manufacturer dedicated to R&D and manufacturing. Enjoy fresh-taste water even better than most bottled water with COMFEE' reverse osmosis system and use the great-quality water for making delicious coffee, crystal-clear ice and healthy baby formula every time you turn on the faucet.
Noted: Iteration of new and old products, transparent and opaque random distribution[ Reverse Osmosis System ]: COMFEE’ 5 stage reverse osmosis system effectively filters out heavy metals (e.g. Lead, Cadmium, and Chrome), organic matter, harmful substances, and 1000+ impurities, with a precision of 0.0001 microns. The RO water filter system gives you clear, clean, odorless water with a TDS reduction rate which is more than 90%.
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9.1

Excellent

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05
Geekpure

Geekpure 6 Stage Reverse Osmosis Drinking Water Filter System 75 GPD - with DI Filter TDS Close to 0

9.5 worth the money

9.1 Taste

8.0 Easy installation
Main highlights

This unit includes an additional 6th-stage Deionization Filter-Mixed bed DI filter is used to further remove TDS from membrane filtered water. It is a high capacity mixed bed ion exchange resin, guaranteed TDS value close 0 ppm. Premium long-lasting replacement filters and parts are universal compatible and standard size.
System comes with high quality quick connect fittings, color coded tubes, and installation manual for an easy DIY experience, No need professional installation, you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.1 year manufacturer warranty, no need registration.
System Capacity 75 gallons per day @ 60 psi. Tank Capacity 2.8 gallon, Fits most under sink cabinets, smart size ensures you get pure water every time. RO tube size: 1/4 inches and 3/8 inches. The ratio of pure water and waste water is 1:2. Feed Water Condition: Water Pressure: 40 - 100 psi, Temperate: 40-110°F/5-45°C, PH: 3.0 -11.0, Max TDS: 2000 ppm tap water or well water.
Premium quality components ensure high reliability and low maintenance for many years. All tubes, quick push fittings, storage tank, and RO membrane are NSF certificated, to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home.
Advanced Reverse Osmosis Technology - Filter Precision 0.0001 micron, Removes up to 99% of contaminants including arsenic, chlorine, lead, fluoride, mercury, cadmium, odor, heavy metals, and 1000+ contaminants, Experience fresher healthier baby formula, tea and coffee, better tasting foods and crystal clearer ice cubes, great tasting even better than most bottled water.
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8.8

Very Good

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06
Geekpure

Geekpure 5 Stage Reverse Osmosis Drinking Water Filter System 75 GPD - with Booster Pump

9.3 Taste

9.1 Instruction

8.9 worth the money
Main highlights

System comes with high quality quick connect fittings, color coded tubing, and videos for an easy DIY experience,Don’t waste money for professional installation ,you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.
System Capacity 75 gallons per day @ 60 psi.Tank Capacity 2.8 gallon,Fits most under sink cabinets,smart size for ensure you get pure water every time.Pipe Size:1/4 inches and 3/8 inches.The Ratio of pure water and waste water is 1:2.Feed Water Condition:Water Pressure: 15 - 50 psi,Temperate:40-110°F/5-45°C,Ph:3.0 -11.0,Max TDS :2000 ppm tap water or well water
Premium quality components ensure highest reliability and low maintenance for many years to come. All tube,quick push fittings, storage tank,Ro membrane is NSF certificated,to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet
Designed for use in areas with water pressure lower than 40 PSI,Turn on & off automatically.Plus extra 4 replacement filters, total 9 pieces filters in the box. Standard sized replacement filters
Advanced Technology-Removes up to 98% of contaminants.Including arsenic,lead,fluoride,mercury,heavy metals and 1000+ contaminants. 0.0001 micron.Experience fresher healthier baby formula,tea and coffee, better tasting foods and crystal clearer ice cubes,great tasting even better than most bottled water
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8.7

Very Good

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07
Geekpure

Geekpure 5 Stage Reverse Osmosis Drinking RO Water Filter System 75GPD

8.7 worth the money

8.4 Taste

8.2 Easy installation
Main highlights

System comes with high quality quick connect fittings, color coded tubes, and installation manual for an easy DIY experience, No need professional installation, you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.1 year manufacturer warranty, no need registration.
System Capacity 75 gallons per day @ 60 psi. Tank Capacity 2.8 gallon, Fits most under sink cabinets, smart size ensures you get pure water every time. RO tube size: 1/4 inches and 3/8 inches. The ratio of pure water and waste water is 1:2. Feed Water Condition: Water Pressure: 40 - 100 psi, Temperate: 40-110°F/5-45°C, PH: 3.0 -11.0, Max TDS: 2000 ppm tap water or well water.
Premium quality components ensure high reliability and low maintenance for many years. All tubes, quick push fittings, storage tank, and RO membrane are NSF certificated, to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home.
Premium long-lasting replacement filters and parts are universal compatible and standard size.
Advanced Reverse Osmosis Technology - Filter Precision 0.0001 micron, Removes up to 99% of contaminants including arsenic, chlorine, lead, fluoride, mercury, cadmium, odor, heavy metals, and 1000+ contaminants, Experience fresher healthier baby formula, tea and coffee, better tasting foods and crystal clearer ice cubes, great tasting even better than most bottled water.
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8.6

Very Good

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08
Geekpure

Geekpure 5 Stage Reverse Osmosis Drinking RO Water Filter System 75GPD

8.7 worth the money

8.4 Taste

8.2 Easy installation
Main highlights

System comes with high quality quick connect fittings, color coded tubes, and installation manual for an easy DIY experience, No need professional installation, you can understand everything about your system and install it with our clear, well-organized instructions in a couple of hours.1 year manufacturer warranty, no need registration.
System Capacity 75 gallons per day @ 60 psi. Tank Capacity 2.8 gallon, Fits most under sink cabinets, smart size ensures you get pure water every time. RO tube size: 1/4 inches and 3/8 inches. The ratio of pure water and waste water is 1:2. Feed Water Condition: Water Pressure: 40 - 100 psi, Temperate: 40-110°F/5-45°C, PH: 3.0 -11.0, Max TDS: 2000 ppm tap water or well water.
Premium quality components ensure high reliability and low maintenance for many years. All tubes, quick push fittings, storage tank, and RO membrane are NSF certificated, to provide healthy and pure water. LEAD FREE deluxe kitchen sink faucet as last pure water guarantee in your home.
Premium long-lasting replacement filters and parts are universal compatible and standard size.
Advanced Reverse Osmosis Technology - Filter Precision 0.0001 micron, Removes up to 99% of contaminants including arsenic, chlorine, lead, fluoride, mercury, cadmium, odor, heavy metals, and 1000+ contaminants, Experience fresher healthier baby formula, tea and coffee, better tasting foods and crystal clearer ice cubes, great tasting even better than most bottled water.
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8.5

Good

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09
Max Water

Max Water 5 Stage Reverse Osmosis Drinking RO Water Filter System 50 GPD - Under-Sink/Wall Mount Water Filtration System for Home, DIY Installation

26% Off
Main highlights

Why Max Water: We have 15+ years of experience in water filtration industry providing solution with a smile to millions of families across North America. Make Max Water your solution to all your filtration needs.
System Specifications: Sediment + GAC + CTO + RO + Inline Post carbon. Waste ratio is 1 : 2 (RO : Waste); 95 - 98 % TDS removal rate depending on input water quality, pressure & temperature. Recommended operating pressure is 45 - 75 psi (city water). Recommended to add Max Water booster pump for well water filtration.
Quality components: We ensure highest reliability and low maintenance for many years to come. All tube,quick push fittings,RO membrane is manufactured with food grade quality,to provide healthy and pure water.
Please Note: This system is designed as a replacement or upgrade for your existing reverse osmosis (RO) setup. It includes the core filtration system only — tank and faucet are not included and are sold separately. This is not intended for instant RO water; for immediate water availability, you will need a compatible storage tank and faucet. Please consider this system only if you already have them or plan to purchase them separately.
Great tasting water: Max Water standard 5-Stage Reverse Osmosis RO Drinking water filter system, effectively reduces contaminants. Filters down to 0.0001 micron.Experience fresher healthier baby formula,tea and coffee,better tasting foods and crystal clearer ice cubes, good taste. No tank and faucet are included with this system.
BPA free components: Our water filter system doesn't contain Bisphenol A or other toxic plastic materials. We consistently provide products and services that meet customer quality requirements.
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8.4

Good

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10
Reverse Osmosis Revolution

Countertop Portable Universal 5-Stage Reverse Osmosis RO Purification Water System with DI Deionizing Mixed Bed 0PPM postfilter, Build e in USA
Main highlights

Universal 5-stage DI 0PPM Reverse Osmosis System, 75 GPD High Quality RO membrane
This RO System delivers approximately 3 gallons of pure, clean water per hour. Build in USA.
The Reverse Osmosis Revolution System easily attaches to your kitchen faucet without the need for plumber. Ideal portable solution for your apartment, home, RVs, aquarium or during your travel time.
Elements and the Percent Membranes will remove: Arsenic (93%-96%), Aluminum (86%-90%), Bicarbonate (90%), Cyanide (93%), Chloride (85%-92%), Calcium (94%-98%), Sodium (86.5%-93%), Sulfate (96%-98%), Potassium (84%-95%), Barium (95%-98%), Iron (94%-98%), Nitrate (60%-76%), Mercury (94%-98%), Zink (95%-98%), Selenium (94%-96%), Lead (95%-98%), Phosphate (94%), Magnesium (98%), Fluoride (82%-92%), Nickel (96%), Cadmium (96%), Detergent (97%), Herbicides (97%), Insectecides (97%), Strontium (96%).
Comes with chrome metal 2-way diverter for kitchen faucets by default. Fit 96% of all kitchen faucets (female or male type of spout). If you want to connect RO to garden/laundry hose, you will need specify that in Customer Notes. We will replace 2-way diverter with garden/laundry hose adapter.
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8.2

Good

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