Reverse Osmosis Systems for Canadian Homes
Cleaner, better-tasting water with an RO system built for your space and lifestyle. Choose from budget-friendly under-sink, compact tanked, high-flow tankless, or instant hot & cold RO options.
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RO Hot & Cold Water Dispenser
Pentair Reverse Osmosis System
Standard Reverse Osmosis System
Compare Our Reverse Osmosis Systems
Choosing the right RO system for your home shouldn’t be difficult. Our quick guide below makes it easier to compare models and features so you can pick the best reverse osmosis water filter for your budget, needs, and style.
Tankless Reverse Osmosis System
RO Hot & Cold Water Dispenser
Pentair Reverse Osmosis System
Standard Reverse Osmosis System
Let customers speak for us
The Everyday Benefits of Reverse Osmosis
illi Water’s reverse osmosis systems for home improve your health, lifestyle, and overall quality of life. Our filter systems are easy on your pocket, give you 24/7 access to fresh water, make your food and beverages taste amazing, and remove water contaminants to keep you safe.
- Improve Taste and Odour: Reverse osmosis effectively removes impurities such as sulphur and chlorine from your water, improving its taste and odour. Every sip of water, cup of coffee, and meal will always taste amazing.
- Unlimited Filtered Drinking Water at Home: RO systems ensure an endless supply of clear, clean water from your tap. You don’t have to worry about running to the store to get water again.
- Saves Money by Replacing Bottled Water: You won’t need to buy bottled water if you have an RO system at home. Save money, reduce your carbon footprint, and keep the environment green and fresh.
- RO Removes 99% of Contaminants: RO filters remove up to 99% of hazardous contaminants, including lead, nitrates, and other pollutants.
Certified Performance You Can Verify
Certification varies by model, so we list it for each system:
• Pentair Reverse Osmosis System: NSF/ANSI 42, 53 and 58 certified
• Standard Reverse Osmosis System: built with NSF/ANSI-certified components
• Tankless Reverse Osmosis System: [certification to be confirmed]
• RO Hot & Cold Water Dispenser: CSA certified and RoHS compliant
NSF/ANSI Certified
Our filters are NSF/ANSI certified, which confirms they remove toxic impurities, providing you with safe, pure water.
What Contaminants Do Our RO Systems Remove?
Heavy Metals (e.g., Lead, Mercury, Arsenic): Old pipes can leach toxic metals into your water without any visible sign. Over time, exposure to heavy metals like lead and arsenic has been linked to serious health issues, including kidney and liver damage. Our system blocks these before they ever reach your tap.
- Chemicals (e.g., Chlorine, Fluoride, Nitrates): Most tap water is treated with chlorine which does its job, but leaves behind a noticeable taste and smell. Nitrates and excess fluoride are also common. Our systems filter these out, making a real difference to how your water tastes and smells day to day.
- Organic Compounds (e.g., Pesticides, Herbicides, Pharmaceuticals): Pesticides, herbicides, and other organic compounds often creep into water supplies, which can cause severe health problems, including brain and heart issues. Our filters remove these synthetic contaminants.
- Microorganisms (e.g., Bacteria, Viruses, Cysts): Microorganisms can be present in even municipal water. Our systems have a fine semi-permeable membrane that removes these pathogens, giving you hygienic water.
With multiple filtration stages working together, our systems are designed to handle the contaminants most commonly found in home water supplies.
Why Choose illi Water RO System For Your Canadian Home?
illi Water is backed by Watermart a Canadian water filtration company with over 30 years of experience in the industry. That means when you buy an illi Water RO system, you're getting decades of expertise built into every unit.
Certification varies by model and is listed for each system above and on its product page, so you can check it before you buy. And because we stand behind what we sell, every system comes with a 1-year warranty and a 90-day satisfaction guarantee. If it's not right for your home, we'll make it right.
Clean, reliable water for your family that's what we're here for.
FAQs
What's the difference between the Standard, Pentair, and Tankless reverse osmosis systems?
What's the difference between the Standard, Pentair, and Tankless reverse osmosis systems?
The main differences come down to filtration stages, flow rate, and features. The Standard RO System is the most budget-friendly option, with 5–7 customizable stages and a storage tank. The Pentair RO System adds NSF/ANSI 42, 53 and 58 certification, a 41% water recovery rate, and tool-free cartridge changes. The Tankless RO System is the premium choice, with no storage tank, 800 GPD flow rate, alkaline remineralization, and a smart digital faucet that shows your water's TDS in real time. Current prices are shown on each product card above.
Do all your reverse osmosis systems remove PFAS, lead, and microplastics?
Do all your reverse osmosis systems remove PFAS, lead, and microplastics?
Yes. All four systems in this collection (the Standard, Pentair and Tankless under-sink systems and the RO Hot & Cold Water Dispenser) use a semi-permeable RO membrane that removes up to 99% of common contaminants, including PFAS, lead, chlorine, and microplastics. The Tankless system and the Hot & Cold Water Dispenser also include a UV sterilization stage.
How are the different reverse osmosis systems installed?
How are the different reverse osmosis systems installed?
The Standard, Pentair, and Tankless RO systems are designed for under-sink installation. The RO Hot & Cold Water Dispenser is a countertop system and can run from its built-in tank without a permanent plumbing connection; an optional direct-water connection can be used where supported. Follow the installation instructions for the specific model.
How much does it cost to maintain a reverse osmosis system each year?
How much does it cost to maintain a reverse osmosis system each year?
Annual maintenance typically runs between $100 and $200 CAD, covering pre-filter and post-filter replacements every 6–12 months and an RO membrane replacement every 2–3 years. That's significantly less than the $600–$900 most Canadian households spend on bottled water each year.
What's your return policy if the system doesn't work for my home?
What's your return policy if the system doesn't work for my home?
Every reverse osmosis system comes with a 90-day satisfaction guarantee if you're not happy with it for any reason. Return it within 90 days for a full refund. All systems are also covered by a 1-year warranty against defects in materials and workmanship. Shipping is free across Canada on every order, and refunds are processed within 5–10 business days of inspection.
Which reverse osmosis system is best for a small apartment or condo?
Which reverse osmosis system is best for a small apartment or condo?
For tight under-sink space, the Tankless RO System is the most compact cabinet option because it does not use a storage tank. If you prefer a countertop system or want to avoid permanent under-sink plumbing, choose the RO Hot & Cold Water Dispenser. The Standard and Pentair systems are conventional under-sink options and require cabinet space for a storage tank.





