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Tankless Reverse Osmosis System
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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.
How Reverse Osmosis Works
1. Sediment Filter
The first stage of reverse osmosis is the sediment filter, which removeslarger particles like sand, rust, and dirt from the water. This improveswater clarity and protects the filters that follow. By catching debris early,it helps maintain performance and extends the life of the system.
2. Carbon Block
The second stage uses a carbon block filter, which removes chlorine,chloramines, and organic chemicals that affect taste and odor. It alsoprotects the RO membrane from chlorine damage, helping ensure clean,better-tasting water and longer system life.
3. RO Membrane
The third stage is the RO membrane, which removes up to 99% ofdissolved solids, heavy metals, and harmful contaminants. It allowsonly pure water molecules to pass through, while flushing outimpurities. This stage is key to delivering clean, high-purity water.
4. Post Carbon Filter
The fourth stage is the post carbon filter, also known as the polishingfilter. It removes any remaining odors or tastes that may linger after theRO process. This final step ensures your water is crisp, fresh, and readyto drink straight from the tap.
Get Filter Water At Every Tap
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.
Our Certifications
Our systems are certified by trusted organizations like NSF, WQA, and ANSI for safety and performance.
Each component is lab tested to meet strict quality standards, ensuring clean, reliable water for your home.
NSF 42 Material Safety
Confirms the cartridge’s materials are safe fordrinking-water contact and won’t add unwantedtaste, odour, or impurities.
WQA NSF 42 Certified
Duplicates the same material-safety testing underthe Water Quality Association’s Gold Seal program,adding an extra audit of formulation, manufacturing, and lot traceability.
ANSI Sustainability S-803
Assesses the product’s full life-cycle - rawmaterials, energy use, end-of-life recovery to meet the first ANSI accredited sustainability benchmark for drinking-water treatment systems
Why Choose Us?
Illi Water offers premium water quality with easy DIYinstallation and 30 years of trusted expertise. NSF certified filters remove impurities while retainingbeneficial minerals. All parts are lab-tested for long term performance and reliability. Color-coded fittingsand video guides make setup quick and hassle-free.
Clear pricing includes essentials, with optionalupgrades shown upfront. Enjoy fresh, great-tastingwater straight from your tap every day.
Reverse osmosis or pitcher filter?
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.
Does RO remove city fluoride?
Does RO remove city fluoride?
Yes, every item comes in our signature, eco-friendly packaging, designed to protect your product and add a touch of luxury to your unboxing experience.
Does RO remove chloramine too?
Does RO remove chloramine too?
Yes, we ship internationally to most countries. Shipping times and costs vary by location. Please check our shipping policy for more details on international orders.
How often to change filters?
How often to change filters?
We accept various payment methods including credit/debit cards, PayPal, Apple Pay, and Google Pay. Secure payment options ensure a smooth and safe checkout process.
Flat taste? Add minerals?
Flat taste? Add minerals?
We accept various payment methods including credit/debit cards, PayPal, Apple Pay, and Google Pay. Secure payment options ensure a smooth and safe checkout process.