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Sub Title: 13,000 to 32,000 GPD Brackish Water RO

Our RO-300 series commercial reverse osmosis systems are manufactured to meet important matters such as user and environmentally friendly construction, robust construction,long term reliability.

The RO-300 series may come standard with media pre-filters, antiscalant and chemical dosing systems. The equipment is made with the customer and their water treatment needs in mind.

SKU: RO-300 Category: Membrane & Reverse Osmosis Systems > Industrial & Commercial Reverse Osmosis Systems Brand: Pure Aqua Other Names: Brackish Tap Water Purification System, BW Reverse Osmosis Machine, Brackish Water RO Purifier, Commercial BWRO Treatment Unit
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Use of RO-300 series Reverse Osmosis Systems

Reverse osmosis systems are tasked with purifying water from brackish and sea water. Thie equipment consists of a high pressure pump that pressurizes brackish or sea water against the surface of a very fine membrane containing small pores. Only water can pass through the small pores in the membrane while rejecting organics such as salt, particles, minerals, and other disassociated species from flowing through. These small pores also have the power of blocking bacteria and disease-causing pathogens. At the end we are left with the emergence of clean, fresh water on the lower-pressured side while salts, minerals, and other disassociated species are discharged into the brine stream then into a drain on the concentrate side.

The RO-300 series comes with many of the same standard features as the RO-200 series, including multimedia and activated carbon pre-filters, water softeners with brine tank, and UV sterilizers. These too can be customized based on individual design to include chemical dosing, cleaning skids, antiscalant and more. These commercial reverse osmosis systems can accommodate between 13,000 to 32,000 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-300 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 the most reputable membrane manufacturers such as Dow Filmtec and Hydranautics (USA made).



Operation Specifications
  • Max. feed water temperature: 42°C
  • Equipment upgrade for TDS over 5,000 ppm
  • Hydrogen Sulfide must be removed
  • Max. Silica Tolerance: 60 ppm @ 60% recovery
  • Feed water TDS: 0-1,000 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 antiscalant dosing
  • Turbidity should be removed
  • Operate at higher TDS by lowering recovery

Commercial Brackish Water Reverse Osmosis Systems RO-300
Model Number Permeate Flow Rate Quantity of 4" Membranes Motor Rating at 1,000 ppm
GPD M3/D 60Hz (hp) 50Hz (kw)
TW-13K-3340 13,000 50 9 3 2.2
TW-15K-5240 15,000 57 10 5 3
TW-18K-4340 18,000 68 12 5 2.2
TW-22K-5340 22,000 85 15 5 3
TW-24K-8240 24,000 91 16 5 3
TW-27K-6340 27,000 102 18 5 3
TW-32K-7340 32,000 121 21 5 4
For more information, please see our PDF in the "Download" tab

Note: If the feed water TDS exceeds 1,000 ppm, the system model number changes to BW-XXK-XXXX, and a suffix is added to the end of the model number: “-3” is added if the TDS is 3,000 ppm or less, and “-5” is added if the TDS is 5,000 ppm or less. Example: Required system to produce 27,000 GPD with a feed water TDS of 5,000 ppm, the corresponding model number is: “BW-27K-6340-5”.



Standard Features: Available Options:
  • 460V/3Ph/60Hz power supply
  • Microprocessor based control panel
  • Programmable time delay and set points
  • Status indicators
  • Permeate & concentrate flow meters
  • Motor starter
  • NEMA 12 enclosure
  • Low pressure switch
  • High pressure switch
  • Liquid filled pressure gauges
  • Permeate conductivity monitor
  • Powder coated carbon steel frame
  • 4" TFC spiral wound membranes
  • Stainless steel multi-stage pump with TEFC motor
  • FRP membrane housing
  • 5 micron cartridge pre-filter
  • 380-415V/3Ph/50Hz power supply
  • 220V/3Ph/60Hz power supply
  • Product tank level controller switch
  • Feed pH controller with sensor
  • Post deionization polishers
  • Pre-piped skid system
  • Feed ORP controller with sensor
  • Water and hour meters
  • Chemical dosing systems
  • Media and Iron prefiltration systems
  • Ozonation and UV sterilization systems
  • Feed water conductivity monitor
  • Membrane cleaning skid
  • Automatic hourly flush
  • Feed/Permeate blending
  • Export crating
  • Water softeners


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

I was extremely excited to install a Pure Aqua water system

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

Since we have our water system we feel better in all respects. Not only are our pipes in better condition, all of our insides and outsides are feeling better, more in harmony with everything around us, and just an overall feeling and knowing of well being. The drinking water tastes so great, safe and ready for us at any time


by: Fadel Shahawi from






Video on Commercial Reverse Osmosis Package Sri Lanka

Commercial Reverse Osmosis Package was manufactured for a major company in Sri Lanka to remove chlorine, TDS, and odor from well water. The package included a multimedia filter, pre and post chemical dosing systems, and a membrane cleaning skid. The reverse osmosis system was designed to produce 27,000 GPD at a feed water TDS of a maximum 2000 ppm, it was selected from our RO-300 series and came complete with a microprocessor control panel...more->