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Sub Title: 600 to 15,000 GPD Brackish Water RO

Our RO-200 series commercial reverse osmosis units are manufactured to meet important matters such as long-term reliability,  user friendly, environmental friendly, and robust construction. One of our most popular series, the RO-200 units are great for most standard and individual commercial needs. This unit usually comes standard with multimedia and activated carbon pre-filters, a water softener with brine tank, and a UV sterilizer. This unit can also be customized to add chemical dosing, feed and back wash pumps, antiscalant and more. The RO-200 units are used to purify water and remove salts and other impurities. It is also capable of rejecting bacteria, sugars, proteins, particles, dyes, and other constituents that have a molecular weight of greater than 150-250 daltons. 

SKU: RO-200 Category: Membrane and Reverse Osmosis Systems > Reverse Osmosis Systems Brand: Pure Aqua Other Names: BW Reverse Osmosis Machine, Brackish Water RO Purifier, Commercial BWRO Treatment Unit, Brackish Tap Water Purification System
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Uses of RO-200 Series Reverse Osmosis Units

Reverse osmosis machines are tasked with purifying water from water sources like lakes, rivers, wells, and even the sea. These machines utilize a high-pressure pump that forces brackish or sea water against the surface of a semipermeable membrane containing small pores. Water molecules are only permitted to flow through the small pores, blocking impurities such as salt, particles, minerals, and other organics from passing through. These small pores have a strong capability of rejecting bacteria and disease-causing pathogens. At the end of this process, clean, purified water emerges on the lower-pressured side while salts, minerals, and other organics are thrown into a drain following a brine stream.

The RO-200 series can be customized based on individual design to include chemical dosing, cleaning skids, antiscalant and more. These reverse osmosis machines can accommodate between 600 and 15,000 GPD, with feed water TDS of 1000 ppm to 5000 ppm. These features have the capability of removing hardness, chlorine, odors, color, iron, and sulfur. Economical and efficient, RO-200 commercial reverse osmosis systems acquire the latest in RO technology to remove dissolved salts, particles, organics, minerals, solids and other contaminants from water. Pure Aqua uses membranes from the most reputable manufacturers such as Dow Filmtec and Hydranautics both of which operate out of the USA.

Available Skid Mounted Systems

Pure Aqua manufactures skid-mounted RO-200 reverse osmosis machines as a turnkey systems individually designed to meet your specifications and are always 100% pre-tested to ensure accurate connections. Depending on the applications, the skid-mounted system might include all pre and post-treatment components, including feed pump, chemical dosing, media filter, carbon filter, water softener, RO, TDS blending mechanism, pH correction, post UV disinfection, ozonation, storage tank and other optional components. The skid mounted system comes complete pre-assembled, piped, wired and ready to operate.



Operation Specifications
  • Max. feed water temperature: 42°C
  • Equipment upgrade for TDS up to 5,000 ppm
  • Hydrogen Sulfide must be removed
  • Max. Silica tolerance: 25 ppm @ 60% recovery
  • Feed water TDS: 0-2,000 ppm
  • Operating pressure: 150 to 250 psi
  • pH tolerance range: 3-11
  • Max. Iron content: 0.05 ppm
  • Feed water pressure: 20 to 80 psi
  • Hardness over 1 GPG requires water softener
  • Turbidity should be removed
  • Operate at higher TDS by lowering recovery

Commercial Brackish RO Systems RO-200 Series
Model Number Permeate Flow Rate Membranes Motor Rating at 1,000 ppm
GPD M3/D Size Qty. 60Hz (hp) 50Hz (kw)
TW-0.6K-125 600 2 2.5"x40" 1 1/2 1/2
TW-1.2K-225 1,200 5 2.5"x40" 2 1/2 1/2
TW-1.8K-325 1,800 7 2.5"x40" 3 3/4 3/4
TW-1.5K-140 1,500 6 4"x40" 1 1 1
TW-3.0K-240 3,000 11 4"x40" 2 1 1
TW-4.5K-340 4,500 17 4"x40" 3 1.5 1.5
TW-6.0K-440 6,000 23 4"x40" 4 1.5 1.5
TW-7.5K-540 7,500 28 4"x40" 5 2 2
TW-9.0K-640 9,000 34 4"x40" 6 2 2
TW-12.0K-840 12,000 45 4"x40" 8 3 3
TW-15.0K-1040 15,000 57 4"x40” 10 3 3
For more information, please see our PDF in the "Download" tab

Note: If the feed water TDS exceeds 2,000 ppm, the system model number changes to BW-XXXK-XXXX, and a suffix is added to the end of the model number: “-5” is added if the TDS is 5,000 ppm or less. Example: Required system to produce 9,000 GPD with a feed water TDS of 5,000 ppm, the corresponding model number is: “BW-9.0K-640-5”.



Standard Features:
Available Options:
  • Pre/post-treatment and pump pressure gauges
  • FRP/SS pressure vessel
  • Tagging and identification of instrumentation
  • Heavy duty high pressure tubing
  • Corrosion resistant high pressure throttling valve
  • Pretreatment lockout
  • Powder coated carbon steel frame
  • 2.5"/4" TFC spiral wound membranes
  • Electric inlet solenoid valve
  • Recycle valve (standard up to 4.5K GPD)
  • Heavy duty 5 micron cartridge pre-filter
  • Corrosion resistant high pressure pump
  • 220V/1Ph/60Hz power supply
  • Factory tested
  • Low pressure switch
  • Product and reject flow meters
  • Ozonation system / UV sterilizers
  • Water softeners
  • Post DI polishers
  • Blending: feed/product
  • High pressure switch
  • pH or ORP meter
  • Recycle flow meter
  • Tank float switch
  • 220V or 460v 3Ph/60Hz power supply
  • 220-240V/1Ph/50Hz power supply
  • 380-415V/3Ph/50Hz power supply
  • Media filters
  • Pre-piped skid system
  • Automatic flush
  • Export wood crating


The ideal applications for commercial reverse osmosis machines include:
  • Power Plants
  • Metal Finishing
  • EDI Pre-treatment
  • Rinse Water
  • Boiler Feed Water
  • Laboratory
  • Plating Operations
  • Cooling Towers
  • Food and Beverage
  • Electronics
  • Safe Drinking Water
  • Chemical Blending
  • Spot Free Product Rinse
  • Mining Industry
  • Beverage Production and Bottled Water
  • Pharmaceutical
  • Ice Manufacturing
  • Ion Exchange Pre-treatment

Great spot free system for my carwash

Services: 5 Stars 5 Stars
Quality: 5 Stars 5 Stars
Delivery: 5 Stars 5 Stars

I have purchased a complete reverse osmosis system for my carwash spot free system. Our customers are extremely happy with the carwash, no spots at all on the cars.

The system included all pretreatment before the RO system.

Thank you for the great system.


by: Ibrahim Khafagau from






Video on Commercial Reverse Osmosis Machines Sri Lanka

Commercial Reverse Osmosis Machine was manufactured for a major company in Sri Lanka to remove hardness, chlorine, TDS, and odor from well water. The system included a multimedia filter to remove suspended solids, activated carbon to remove chlorine and odor, and a twin-alternating softener to remove hardness. The system was designed to produce 9,000 GPD at a feed water TDS of a maximum 2,000 ppm, it was selected from our RO-200 series and came complete with a microprocessor contr..more->