The gold standard in water purification. THUNDER©, VIPER©, and SHARK© RO systems — from under-sink drinking water to whole-house and industrial scale.

Reverse osmosis (RO) forces water through a semi-permeable membrane at pressure, blocking dissolved salts, heavy metals, PFAS, fluoride, nitrates, bacteria, and viruses — producing water that is up to 99% pure. Our systems use Crystal Quest®'s three proprietary membrane series:
The THUNDER© series handles municipal and well water with TDS below 2,000 ppm. Residential under-sink systems range from 10 to 17 stages of filtration. Industrial THUNDER© systems are available from 15 GPM to 360 GPM (21,600–518,400 GPD), skid-mounted and pre-wired for rapid installation.
Designed for water with TDS between 1,000 and 10,000 ppm. The VIPER© series offers capacities from 1,500 to 180,000 gallons per day with high recovery rates and minimal energy consumption. Engineered with stainless steel booster pumps and low-energy membranes.
The SHARK© series handles seawater applications from 600 to 7,000 GPD using a 316 stainless plunger-type pump, corrosion-resistant aluminum frame, and fiberglass membrane housings. Energy recovery devices reduce operating costs significantly at scale.
| Ion | % Rejection | Ion | % Rejection |
|---|---|---|---|
| Calcium | 95–98% | Nitrate | 92–95% |
| Lead | 96–98% | Fluoride | 93–95% |
| Iron | 97–98% | Bacteria | 99%+ |
| PFAS/PFOA | 95–99% | Arsenic | 95–98% |
| Sodium | 94–98% | Sulfate | 97–98% |
| Mercury | 95–97% | Chloride | 90–95% |
*Rejection rates are nominal and vary with feed water chemistry, temperature, and TDS. Not a guarantee of performance.