Skip to content
Better Taste
No Water Waste
Provides Protection
No Pressure Loss
Pure Refreshment
Undersink

Collection: Undersink

Sip fresh, full of taste and free from impurities water from your kitchen tap with Illi’s under‑sink filtration systems. Designed to fit neatly beneath your countertop, each system delivers premium sediment and carbon filtration, scale‑prevention media, and all the fittings needed for a quick DIY install. Enjoy contaminant‑free water for drinking, cooking, and coffee without sacrificing cabinet space. We ship all over Canada and back every system with a 5‑year warranty.

Shop Now

Multi Stage

Type:

Multi Stage

Regular price $10,000.00
Sale price $10,000.00 Regular price $12,000.00

Customer Support

Reach our experts anytime day or night

Shop Now - Pay Later

Buy today, split payments over easymonths

Easy Refund

Return anything within 30 days, noquestions asked.

Fast and Free Shipping

Get free shipping, delivered fast and tracked.

Over 1000 Happy Reviews

Usman Khalid

The Pentair RO system has been a great upgrade. Thewater tastes fresh and pure, and installation was quickand simple. I'm really satisfied with the quality andperformance so far.

Usman Khalid

The Pentair RO system has been a great upgrade. Thewater tastes fresh and pure, and installation was quickand simple. I'm really satisfied with the quality andperformance so far.

Usman Khalid

The Pentair RO system has been a great upgrade. Thewater tastes fresh and pure, and installation was quickand simple. I'm really satisfied with the quality andperformance so far.

Usman Khalid

The Pentair RO system has been a great upgrade. Thewater tastes fresh and pure, and installation was quickand simple. I'm really satisfied with the quality andperformance so far.

Usman Khalid

The Pentair RO system has been a great upgrade. Thewater tastes fresh and pure, and installation was quickand simple. I'm really satisfied with the quality andperformance so far.

Load video: video Url

Talk about your brand

Pair text with an image to focus on your chosen product, collection, or blog post. Add details on availability, style, or even provide a review.

Comparison table

Heading 1 Heading 2 Heading 3
Our Brand
Other 1
Other 2
Modern Slats

Standard Reverse Osmosis System

The Standard RO system delivers proven, effectivefiltration through a traditional tank-based setup.It’s capable of removing a broad spectrum ofimpurities, making it a reliable choice for everydayhousehold use. Many models are DIY-friendly andbudget-conscious, offering strong performancewithout complex features. While it uses moreunder sink space and typically has a slower flowrate than tankless systems, it remains a popularand trusted option for consistent clean water.

Tankless Reverse Osmosis System

The Tankless RO system is a modern, space savingsolution that delivers clean, great-tasting waterinstantly. Without a storage tank, it providescontinuous flow directly from the tap and fits neatlyunder the sink. It’s designed for easy DIY installationwith color-coded connections and quick filterchanges. LED indicators show when maintenance isneeded, making it convenient and user-friendly.Perfect for smaller kitchens or anyone who valuesefficiency and sleek design.

Pentair Reverse Osmosis System

The Pentair RO system offers advanced multi stagefiltration, removing a wide range of harmfulcontaminants including chlorine, lead, and dissolvedsolids. Known for its durability and performance, it’strusted in thousands of homes. The system comeswith a traditional tank and is ideal for families whowant reliable, high-quality filtration. Though it mayrequire professional installation, its long lasting components and strong reputation make it adependable, long-term investment.

Modern Slats
Modern Slats

Why Choose illi water

Enjoy the convenience of pure, filtered water from every tap in your home. With our advanced reverse osmosis systems, you no longer have to rely on bottled water orsingle point filters. Whether you're filling a glass in the kitchen, washing fruits, makingbaby formula, or brushing your teeth, you get clean, great-tasting water that’s safe forevery use. It’s a simple upgrade that brings wellness and peace of mind to your entirehousehold.

FAQs

Reverse osmosis or pitcher filter?

Pitcher filters reduce chlorine taste and a fewmetals. Reverse osmosis removes hundreds ofcontaminants like lead, PFAS, nitrates, andmicroplastics for cleaner, better-tasting water.