200 GPD Portable Seawater Desalination System – Compact Marine Watermaker
The ForeverPure SWRO-200 is a compact, high-performance portable desalination system that converts seawater into safe, potable drinking water at 200 gallons per day (757 LPD). Designed as a reliable marine watermaker for sailboats, yachts, and coastal installations, this small desalination system delivers fresh water anywhere with ocean access. Made in USA at our Silicon Valley facility since 1997.
Ideal For
- Sailboat watermaker – reliable freshwater for ocean cruising and liveaboard vessels
- Portable water desalination for coastal homes and remote properties
- Emergency water purification system for disaster relief and humanitarian operations
- 12V watermaker applications – compatible with marine and off-grid DC power systems
- Island resorts, small hotels, and eco-lodges
Technical Specifications
| SKU / Model | SWRO-200 |
| Product Type | Seawater Reverse Osmosis System |
| Product Capacity | 200 GPD / 757 LPD |
| Feed Water Type | Seawater (up to 45,000 ppm TDS) |
| Operating Pressure | 800 – 1,000 PSI |
| Salt Rejection Rate | 99.4% |
| Recovery Rate | 25% – 45% |
| Product Water Quality | Less than 500 ppm TDS (meets WHO standards) |
| Warranty | 1 Year Limited Warranty |
Premium Components
- High-Pressure Pump: Danfoss APP series – super-duplex stainless steel, ceramic-coated pistons
- Membranes: LG NanoH2O or Toray TFC – greater than 99% salt rejection
- Pre-filtration: Dual-stage cartridge filtration (20µm + 5µm)
- High-Pressure Piping: 316L stainless steel
- Controls: Automatic operation with protective shutdown trips
Why Choose ForeverPure?
With over 8,000 desalination systems shipped worldwide, ForeverPure is a trusted manufacturer of commercial and portable SWRO systems. Every system is built with industry-leading components and backed by our engineering team for installation guidance and 24/7 technical support.
Get a Free Quote
Need help selecting the right portable desalination system or marine watermaker? Contact our engineers for a free consultation — call +1-408-969-2688 or email sales@ForeverPurePlace.com.
Compare Seawater Desalination System Capacities
Not sure which size fits your project? Explore the full range or get free sizing help from our engineers.
- All Seawater Desalination Systems (200 GPD–1M GPD)
- Desalination Machine Buyer's Guide
- 500 GPD Seawater Watermaker
- 3,000 GPD Seawater Desalination System
- Request a free quote & sizing consultation
Frequently Asked Questions
What is a 200 GPD watermaker best suited for?
The 200 GPD ForeverPure watermaker is sized for sailboats, yachts, small coastal homes, and emergency or off-grid use. It produces about 200 gallons (≈760 liters) of fresh water per day from seawater — enough for a small crew or household.
What power does the 200 GPD watermaker require?
It runs on 12V/24V DC or 110V/230V AC, so it works with marine battery banks, solar arrays, or shore power. The Danfoss APP high-pressure pump is engineered for low energy draw.
How much maintenance does a marine watermaker need?
Maintenance is minimal: replace cartridge prefilters every 1–3 months, flush the system after use, and replace the RO membrane every 3–7 years depending on feed water and run hours.
