Technical Specifications
| Feature | Details |
| Brand | Wellsys |
| Model | 400B / RO-400 |
| Technology | Advanced Reverse Osmosis (RO) |
| Filtration Stages | 5 Stages (PP, GAC, CTO, Toray RO Membrane, Post Carbon) |
| Output Capacity | 400 Gallons Per Day (Approx. 63–67 Liters Per Hour) |
| Pressure Tank | 11-Gallon Heavy-Duty Pressurized Storage Tank |
| RO Membrane | Premium “Toray” Wellsys High-Rejection Membrane |
| Frame Design | Heavy-Duty, Powder-Coated Steel Floor Stand with Pressure Gauge |
| Origin | Made in Vietnam |
| Ideal For | Medium to Large Offices, Factories, Schools, Clinics (85–100 Persons) |
Industrial-Grade Performance for Uncompromised Purity
When standard water filters fall short under heavy demand, the Wellsys 400B steps in as the ultimate commercial-grade solution. Generating an impressive 63 to 67 liters of pristine, purified water per hour, it is custom-built to easily sustain mid-sized corporations, educational centers, medical facilities, and industrial staff rooms with 85 to 100 individuals.
Built around premium components, including a world-class high-rejection “Toray” RO membrane, the system aggressively tackles aggressive TDS levels, heavy metal presence, chlorine, industrial runoff, and harmful biological microbes. The freestanding steel stand provides structural rigidity for seamless placement under breakroom sinks or deep utility rooms, while twin commercial-grade booster pumps guarantee rapid flow rates even during peak business hours.
Key Features
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Massive 400 GPD Supply: Engineered to output nearly double the capacity of standard commercial units, eliminating midday water shortages in demanding environments.
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Dual High-Volume Booster Pumps: Fitted with high-pressure booster pumps and an integrated diagnostic pressure gauge to maintain structural performance and track system pressure effortlessly.
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Authentic Vietnamese Construction: Assembled utilizing premium, certified food-grade materials directly in Vietnam to offer zero chemical leaching and exceptional longevity.
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5-Stage Deep Purification: Employs a multi-tier physical and chemical barrier system that clears away visible dirt, rust, line odors, chemical tastes, heavy metals, and viruses.
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Corrosion-Resistant Floor Stand: The entire assembly is integrated onto a powder-coated, freestanding frame designed for high structural integrity and easy filter swap access.
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High-Pressure Steel Buffer Tank: Accompanied by an oversized 11-gallon storage reservoir that guarantees excellent distribution pressure to connected taps or dispensers.

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