4 Stage RO System
The AqualiteUS RO400-C is a premium 4-stage reverse-osmosis filtration system designed for superior taste, purity, and convenience. Featuring advanced Thin-Film Composite (TFC) membrane technology and proprietary twist-off filters, this undersink system removes up to 97% of Total Dissolved Solids (TDS) and impurities such as chlorine, lead, heavy metals, and organic contaminants.
With a rated output of up to 100 gallons per day, the RO400-C delivers crisp, clean, great-tasting water directly from a dedicated faucet—while saving an additional 3.2 gallons on reserve. Its compact manifold design saves space and simplifies filter changes, making maintenance fast and sanitary.
Includes a 3.2-gallon reservoir tank, chrome RO faucet, and all installation hardware.
Alkaline option
Add an alkaline filter to your RO to return healthy minerals back to your waterafter all contaminants have been removed.
Features and Benefits
• Removes up to 97% of TDS, including heavy metals and chemicals
• Multi-stage filtration: sediment, carbon, and RO membrane
• Twist-off cartridge design for quick, clean filter changes
• Produces up to 100 gallons of purified water per day
• Compact manifold saves space and simplifies installation
• Dedicated RO faucet for on-demand purified water
• Automatic shutoff valve to prevent overflow
• 3.2-gallon storage tank ensures consistent water supply
• 3-year limited warranty on the unit
Technical Specifications
| Specification | Details |
|---|---|
| Model # | W202C |
| Rated Output | Up to 100 gallons per day |
| TDS Reduction | ≤ 500 ppm TDS |
| Rejection Rate | 90–98% |
| Feed Pressure | 14.5 – 58 psi |
| Feed Temperature | 41°F – 100.4°F (5°C – 38°C) |
| Maximum Flow | 0.14 GPM |
| Tank Capacity | 3.2 gallons (12.1 L) |
| Weight & Dimensions | 9.26 lbs (4.2 kg); 15.22”H × 15.78”W × 4.67”D |
| Warranty | 3-year limited |
| Source Water Quality | ≤ 0.01 ppm Fe, ≤ 0.2 ppm Chlorine, no bacteria |
Filtration Stages:
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Sediment Filtration – Removes dirt, sand, and rust.
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Carbon Block Filtration – Reduces chlorine, odors, and organic compounds.
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Reverse Osmosis Membrane – Removes up to 97% of TDS, heavy metals, and dissolved organics.
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Post-Carbon Filtration – Polishes water for optimal taste and clarity.
Find out what solution is best by getting a free consultation from an expert
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From our Tyngsborough headquarters, we proudly serve communities throughout New England, offering free water testing, expert consultations, and professional installation. Come see why AqualiteUS is the trusted name in home water care.
