REVERSE OSMOSIS
SYSTEMS

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

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Systems
Freshwater, brackish, and desalination RO systems for residential and commercial use.
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Whole House RO
Point-of-entry RO systems delivering purified water to every tap, shower, and appliance.
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Under-Sink RO
Thunder Series® under-sink RO from 10 to 17 stages. The gold standard for drinking water.
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Countertop RO
No-installation countertop RO — connects to your faucet. Perfect for renters.
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ROVER Off-Grid Portable RO System
Off-Grid Portable
Solar-powered portable RO purifies water from lakes, streams, and rivers.
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Membranes
Freshwater (THUNDER©), brackish (VIPER©), and seawater (SHARK©) RO membranes.
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Water Storage Tanks
Pressurized storage tanks and atmospheric tank kits for whole-house RO systems.
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Replacement Filter Packs
Annual replacement packs keeping your RO system performing at peak efficiency.
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Dosing Systems
Chemical feed systems for antiscalant, pH adjustment, and membrane pretreatment.
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Pretreatment
Multimedia and carbon pre-filters protecting membranes from fouling and scaling.
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Parts & Accessories
Fittings, valves, housings, gauges, TDS meters, and replacement components.
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About RO Membranes
Technical guide to RO membrane technology, rejection rates, and selection.
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Understanding Reverse Osmosis

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:

THUNDER© — Freshwater Systems

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.

VIPER© — Brackish Water Systems

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.

SHARK© — Seawater Desalination

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.

Membrane Rejection Rates

Ion% RejectionIon% Rejection
Calcium95–98%Nitrate92–95%
Lead96–98%Fluoride93–95%
Iron97–98%Bacteria99%+
PFAS/PFOA95–99%Arsenic95–98%
Sodium94–98%Sulfate97–98%
Mercury95–97%Chloride90–95%

*Rejection rates are nominal and vary with feed water chemistry, temperature, and TDS. Not a guarantee of performance.