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Type:
Pentair Reverse Osmosis System
Type:
Standard Reverse Osmosis System
Type:
Tankless Reverse Osmosis System
Type:
Standard Multi Stage Filter
Type:
Pentair Multi Stage Filter
Over 2,000 Happy reviews
Jaroslava K.
Premium water solutions that actually fit our family’s routine — quiet, efficient, and the water tastes noticeably fresher. Installation was fast and the technician explained everything clearly.
Alexandra M.
We love how the system adapts to our household. Monthly maintenance reminders make life easier. Great product and friendly support.
Danielle S.
High quality and thoughtful design. My kids drink water more often now — I can tell it’s cleaner and better tasting. Highly recommend for families.
Elizabeth R.
Excellent value for money. The unit blends into our kitchen and provides consistent, great-tasting water. Setup was simple and customer service was helpful.
Victoria H.
Reliable performance and low noise. I appreciate the eco-friendly filters and straightforward subscription plan. Small quibble: wish the app had more analytics.
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Explore Our Signature Collections
Premium water solutions, thoughtfully curated to match your family’s needs and lifestyle.
Trusted. Certified. Guaranteed
Every illiWater system is built to standards you can measure and trust. Our systems are rigorously tested and certified to NSF/ANSI standards, recognized worldwide for safety and performance. That means proven reduction of contaminants like chlorine, lead, pesticides, VOCs, and more verified by independent authorities, not just claimed.
We also use only BPA-free components and lead-free faucets, ensuring every drop that touches your glass is as safe as it is refreshing. Add to that our 5-year warranty and 90-day satisfaction guarantee, and you have more than a filtration system you have the assurance that your family’s water is protected today, tomorrow, and for years to come.
Enjoy 90 Days Return Gurantee
At illiWater, we believe peace of mind should be built into every system we sell. That’s why we back all of our products with a 5-year warranty, covering defects in materials and workmanship under normal residential use. If anything ever goes wrong with your system, our team will be there to make it right whether that means a replacement part, guidance, or in rare cases, a full system replacement.
To give new customers even more confidence, every illiWater system also comes with a 90-day satisfaction guarantee. Install it in your home, use it with your family, and experience the difference risk-free. If for any reason you’re not completely satisfied, simply return it within 90 days for a full refund. No restocking fees, no fine print — just a straightforward promise that your investment is protected.
We’re Here to Help
Have questions about your water system? You’ll find quick answers to the most common ones here.
Still unsure? Our team is just a message away.
How often do I need to replace the filters?
How often do I need to replace the filters?
Most filters last 6–12 months, depending on your water quality and household size. We’ll notify you when it’s time for a replacement.
Is installation something I can do myself?
Is installation something I can do myself?
Yes. Our systems are designed for simple, under-sink installation with clear instructions. Most families can set it up in under an hour.
What certifications do illiWater systems have?
What certifications do illiWater systems have?
All systems are NSF/ANSI certified for safety and performance, and built from BPA-free, lead-free components.
Do your systems work with all water types?
Do your systems work with all water types?
Yes. illiWater systems handle a wide range of water conditions — including varying pH, hardness, and TDS levels.
What’s included in my warranty and guarantee?
What’s included in my warranty and guarantee?
Every system comes with a 5-year warranty and a 90-day satisfaction guarantee. If you’re not happy, return it for a full refund.
Will the system fit under my kitchen sink?
Will the system fit under my kitchen sink?
Absolutely. Each design is slim, space-saving, and tankless where possible, freeing up storage space in your kitchen.
Do you offer add-ons like fluoride or UV filters?
Do you offer add-ons like fluoride or UV filters?
Yes. You can add fluoride filters, UV light sterilization, or mineralization options depending on your needs.
Do your systems workHow much water do your systems waste compared to traditional ones?
Do your systems workHow much water do your systems waste compared to traditional ones?
Our systems are far more efficient — with up to 2:1 pure-to-drain ratios, saving thousands of liters per year compared to older models.
What makes illiWater different from other brands?
What makes illiWater different from other brands?
We combine advanced multi-stage filtration, modern design, and transparent guarantees — all backed by over 30 years of water expertise through our parent company, Watermart.
