SIGN UP FOR OUR NEWSLETTER
Receive our latest updates about our products & promotions.
Deionization
High Purity Water Systems for Every Application
Five categories of deionization solutions, from laboratory-grade polishing systems to high-flow industrial tanks and precision monitoring instruments.
Popular
Ultrapure
Lab Water Systems
Laboratories & Analytical Work
RO/DI and ultrapure polishing systems for research labs, hospitals, and analytical instruments. Consistent high purity water for your most demanding applications.
Up to 118 L/hr
Browse Collection →
Portable
Spot-Free Rinse
Vehicles, Windows & Glass
Mobile and stationary DI systems that eliminate water spots on cars, trucks, RVs, windows, and glass surfaces. No towel drying required.
Portable
Browse Collection →
Refillable
DI Tank Systems
High-Capacity Industrial
Refillable mixed-bed DI tanks for higher volume applications. Cost-effective alternative to exchange tank services. Refill resin yourself and save dramatically.
Up to 7,500 Gal
Browse Collection →
Quick-Change
DI Cartridge Systems
Compact & Modular
Space-saving cartridge-based deionizers with quick-change filters. Perfect for tight spaces. Change cartridges in seconds with no interruption to your process.
Up to 6 GPM
Browse Collection →
Precision
Monitoring & Instrumentation
Quality Control & Testing
TDS meters, conductivity controllers, and quality indicator lights to monitor your DI water purity. Know exactly when cartridges or resin need replacement.
Inline & Handheld
Browse Collection →
Talk to a Certified Water Professional
Not sure which system fits your facility? Our team holds every major Water Quality Association certification: Master Water Specialist, Certified Water Specialist, Certified Treatment Designer, and more. They'll analyze your water chemistry, size the right system, and walk you through installation, all at no cost.
Side-by-Side
Compare Our Deionization Solutions
Every system is backed by our satisfaction guarantee and lifetime technical support from certified water specialists.
| Feature | Lab Water | Spot-Free Rinse | DI Tanks | DI Cartridges | Monitoring |
|---|---|---|---|---|---|
| Best For | Labs, hospitals, analytical instruments | Car wash, window cleaning, detailing | High-volume industrial, manufacturing | Tight spaces, quick-change needs | Quality verification, process control |
| Water Quality | Ultrapure DI | Spot-Free Grade | High Purity DI | High Purity DI | Measures purity |
| Flow Rate | Up to 118 L/hr | Up to 1.4 GPM | Up to 3 GPM | Up to 6 GPM | N/A |
| Service Model | RO + DI polishing | Tank or cartridge swap | Refillable tank | Cartridge swap | Meters & controllers |
| Maintenance | Annual filter swap | Per-use changeout | Refill resin in-house | Quarterly cartridge swap | Sensor calibration (annual) |
| Form Factor | Benchtop / wall-mount | Mobile + stationary | Floor-mount tank | Inline / under-sink | Panel-mount + inline meters |
| Browse → | Browse → | Browse → | Browse → | Browse → |
Why Switch
US Water Systems vs. Traditional DI Providers
Most businesses still pay 40 to 50 cents per gallon for exchange-tank DI service. We took a different approach.
- <5 cents per gallon. Own your system and refill your own cartridges or resin
- Non-proprietary filters. Standard sizes mean you're never locked into overpriced replacements
- No service interruptions. Cartridges swap in seconds and tanks can be paralleled
- Ships in days. Systems in stock and ready to ship from our Midwest facility
- Direct expert access. Certified water specialists, not call-center scripts
- Satisfaction guarantee. 1-year money-back on every system we sell
Typical Tank Exchange Services
- 40 to 50 cents per gallon. Labor, travel, and delivery costs passed to you
- Proprietary equipment. Locked into a single vendor for tanks and service
- Scheduled deliveries. Work around their schedule and risk running out
- Bulky tanks. They take up valuable floor space in your facility
- Outsourced support. Long holds and generic troubleshooting
- No guarantees. You're stuck once you sign the service contract
Industries We Serve
Trusted Across Every Industry That Demands High Purity Water
Our deionization systems are at work in thousands of facilities nationwide, meeting the unique water purity standards of each sector.
Laboratories
Analytical instruments, research, and critical lab processes
Pharmaceutical
High purity water for compounding and production
Healthcare & Dental
Autoclaves, sterilizers, and instrument rinse
Manufacturing
CNC cooling, plating, parts washing, and rinsing
Car Wash & Detailing
Spot-free rinse that eliminates towel drying
Hydroponics & Aquaculture
Zero-TDS water for precise nutrient control
Our Guarantee
We Stand Behind Every System We Build
At US Water Systems, we're so confident in the quality of our deionization systems that we back every one with the strongest guarantee in the industry. Your business depends on reliable high purity water, and we depend on earning your trust.
Comprehensive warranty on all systems
1-year money-back satisfaction guarantee
Free lifetime technical support from certified specialists
All replacement parts stocked and ready to ship
<5¢
Per gallon of high purity DI water when you own your system, backed by a 1-year money-back satisfaction guarantee and lifetime technical support.
Ready to Stop Overpaying for High Purity Water?
Talk to a certified water specialist about your application. We'll help you size the right deionization system at no cost.
- Choosing a selection results in a full page refresh.