The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium machine for commercial use, offering precision gauges, controls, and three cylindrical tanks on top. Available in black and delivering 2,000 to 8,000 GPD, it features top-notch parts for optimal performance.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS provides optimal performance with four white cylindrical filters mounted on a black metal frame, utilizing high-grade commercial parts.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium filtration unit with high-grade commercial parts like a control panel, fiberglass membrane housing, pressure gauges, adjustment valves, and flow meters. It measures 25 x 34.
Two DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEMS by US Water Systems Inc, built with high-grade commercial parts, stand side by side. Their intricate network of pipes and valves rests securely on sturdy metal frames.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium machine for commercial use, offering precision gauges, controls, and three cylindrical tanks on top. Available in black and delivering 2,000 to 8,000 GPD, it features top-notch parts for optimal performance.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS provides optimal performance with four white cylindrical filters mounted on a black metal frame, utilizing high-grade commercial parts.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium filtration unit with high-grade commercial parts like a control panel, fiberglass membrane housing, pressure gauges, adjustment valves, and flow meters. It measures 25 x 34.
Two DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEMS by US Water Systems Inc, built with high-grade commercial parts, stand side by side. Their intricate network of pipes and valves rests securely on sturdy metal frames.

DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS | 2,000 TO 8,000 GPD

List Price: Factory Direct Price: SALE PRICE:
$13325.0 $8883.34
$7,995.00
$7,995.00
40% OFF FACTORY DIRECT SAVINGS
SKU: 223-DFBROM : 223-DFBROM-2000
The DEFENDER HD is a customizable commercial-grade RO system. It was designed to be durable, sustainable, economical, and eco-friendly. Built in the USA specifically with commercial and industrial applications in mind this system is made for “brackish water.” Brackish water occurs in a natural environment and has more saltwater than freshwater, yet not as much as seawater. It can result from mixing seawater and freshwater in areas where rivers meet the sea. It can also occur in untapped underground water systems. A standard Reverse Osmosis System with Standard “freshwater” membranes won’t treat brackish water. You will need a Defender HD system to effectively lower the salt level in your water.
Subtotal: $7,995.00

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The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium machine for commercial use, offering precision gauges, controls, and three cylindrical tanks on top. Available in black and delivering 2,000 to 8,000 GPD, it features top-notch parts for optimal performance.

DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS | 2,000 TO 8,000 GPD

$13,325.00 $7,995.00
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium machine for commercial use, offering precision gauges, controls, and three cylindrical tanks on top. Available in black and delivering 2,000 to 8,000 GPD, it features top-notch parts for optimal performance.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS provides optimal performance with four white cylindrical filters mounted on a black metal frame, utilizing high-grade commercial parts.
The DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM by US Water Systems Inc is a premium filtration unit with high-grade commercial parts like a control panel, fiberglass membrane housing, pressure gauges, adjustment valves, and flow meters. It measures 25 x 34.
Two DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEMS by US Water Systems Inc, built with high-grade commercial parts, stand side by side. Their intricate network of pipes and valves rests securely on sturdy metal frames.

DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS | 2,000 TO 8,000 GPD

$13,325.00 $7,995.00
Production Rate: 2,000 GPD
Select Pre-Treatment: None
Product Overview
Defender HD Logo

COMMERCIAL BRACKISH WATER RO SYSTEM

Designed to be sustainable and economical, the DEFENDER HD is a commercial grade RO system that is built to last! It comes standard with a two-year warranty* because we believe in the high-grade heavy duty commercial parts we put into it. You will quickly see that this RO system beats the competition hands down. Plus, it is made in the USA.

DEFENDER HD is for applications where the TDS is too high for a regular tap water reverse osmosis membrane typically over 2,000 TDS, and it's designed to handle water with high sodium, chloride, and sulfates.

Brackish water refers to a water source that has more salt than freshwater but not as much as seawater. The level of salt will vary depending on environmental factors and cannot be precisely defined. If you are not sure whether you need a DEFENDER HD system, contact one of our Water Specialists at 800-608-8792.

Woman Drinking Freshly Purified Softened Water
The DEFENDER by US Water Systems is a commercial brackish water RO system, featuring high-grade parts such as a control panel, fiberglass membrane housing, pressure gauges, adjustment valves, and flow meters. It measures 25 wide and 34 tall and offers capacities between 2,000 to 8,000 GPD.
The DEFENDER HD fiberglass membrane housing by US Water Systems Inc, featuring a robust design and dimensions of 25x60x25/34, is vital for the DEFENDER COMMERCIAL BRACKISH WATER RO SYSTEM BY US WATER SYSTEMS, ensuring compatibility with high-grade commercial parts.
Diagram of the DEFENDER Commercial Brackish Water RO System by US Water Systems Inc, showcasing water flow and membrane structure, along with contaminant separation. Includes comparisons of bacterial and pore sizes, featuring high-grade commercial parts for 2,000 to 8,000 GPD systems.

Permeate Flush

Permeate Flush is standard for our RO systems that can provide a membrane flush directly after shutdown. Permeate means “Product Water”, therefore we call this system Permeate Flush since it is using the product water to flush the membranes after shutdown. This is extremely effective when taking membrane life into consideration. If dissolved solids from the feed water are elevated this critically impacts the membrane’s life. This may not always be from the total dissolved solids (TDS).

Other cases have a particular element such as silica. When this is elevated our permeate flush is used to release it from the membrane after shutdown. If concentrated solids are left in the membrane housing after shutdown they can fall out of solution. When this happens, the solids remain in the membrane housing until the RO system starts up again. This then causes them to be pushed into the membrane instead of being flushed out as they would be during normal operation. These solids then build up inside the membrane reducing the lifespan and possibly causing damage.

KEY FEATURES AND BENEFITS

A Green Solution

  • Our Defender RO is up to 65% efficient

    • Commercial Pump and Motor

  • At the heart of the DEFENDER HD is a true commercial centrifugal pump. Compared to rotary vane and diaphragm pumps which offer no longevity. In fact, they frequently must be replaced every six months or so, and our centrifugal pump does not.

    • Panel-Mount

  • Flow Meters and pressure gauges with 316 stainless steel needle valves for precise control of production and wastewater

    • 5-Micron Magna Pre-Filter

  • With 36 square feet of media for long life

    • Fiberglass Membrane Housing

  • These housings provide the best longevity with ease of replacement

    • Highest Rejection Rates

  • Up to 99% rejection

    • Defender Controller with TDS Meter

  • Enables you to continuously monitor water quality

    • Best Warranty in the Business

  • Two years on the system (does not include consumables such as membranes and filters)

    • Which Pumps are Not True Commercial RO Pumps?
    A red circle with a diagonal line over the Defender Commercial RO System By US Water Systems | 2000 - 16000 GPD from US Water Systems Inc, emphasizing the prohibition of non-sustainable practices.

    Diaphragm Pump

    Very light duty pump for intermittent applications. Maybe something you would apply to an under-sink RO

    A red prohibition symbol over a pump highlights sustainability, echoing the eco-friendly ethos of the Defender Commercial RO System by US Water Systems Inc (2000 - 16000 GPD).

    Rotary Vane Pump

    Light duty pump for small RO systems where continual operation is not critical, not for heavy duty operations

    A blue and metallic, eco-friendly cylindrical water pump with visible labels and connectors, part of the Defender Commercial RO System by US Water Systems Inc, offering 2000 - 16000 GPD.

    Multistage Centrifugal Pump

    Engineered to operate continuously for long periods of time. A True Commercial Pump that you can count on

    RO Specifications

    Design 2,000 GPD 4,000 GPD 6,000 GPD 8,000 GPD
    Configuration Single Pass
    Feed Water Source City or Well Water
    Recovery Rate 31.5% 48% 58% 65%
    Rejection and Flow Rates
    Nominal Salt Rejection % 99.5
    Permeate Flow* gpm (lpm) 1.38 (5.22) 2.78 (10.52) 4.16 (15.80) 5.56 (21.13)
    Minimum Feed Flow gpm (lpm) 4.38 (16.62) 5.78 (21.88) 7.16 (27.20) 8.56 (32.53)
    Maximum Feed Flow gpm (lpm) 6.00 (22.70) 9.00 (34.07) 14.00 (53.00) 14.00 (53.00)
    Minimum Concentrate Flow gpm (lpm) 3.00 (11.36)
    Connections
    Feed inch 1" FNPT
    Permeate inch 1/2" Tubing
    Concentrate inch 1/2" Tubing
    Membranes
    Membrane(s) Per Vessel 1
    Membrane Quantity 1 2 3 4
    Membrane Size 4" x 40" (4040)
    Vessels
    Vessel Array 1 1:1 1:1:1 1:1:1:1
    Vessel Quantity 1 2 3 4
    Pumps
    Pump Type Multi-Stage
    Motor HP 1.5
    RPM @ 60 3450
    Electrical
    Standard Voltage 220V 50Hz 1PH
    Voltage Amp Draw 8.3      
    System Dimensions**
    L xW x H inch (cm) 25 x 25 x 65 (63.5  x 63.5 x 165.1)
    Weight lb. (kg) 300 (136) 340 (154.2) 370 (167.83) 400 (181.44)
    RO Operating Limits
    Maximum Feed Temperature °F (°C) 105 (40.96)
    Minimum Feed Temperature °F (°C) 40 (4.44)
    Maximum Ambient Temperature °F (°C) 120 (48.89)
    Minimum Ambient Temperature °F (°C) 35 (1.66)
    Maximum Feed Pressure psi (bar) 85 (5.86)
    Minimum Feed Pressre psi (bar) 35 (2.41)
    Maximum Operating Pressure psi (bar) 200 (13.79)
    Maximum SDI Rating < 3
    Maximum Free Chlorine ppm 0
    Maximum TDS ppm 6000
    Maximum Hardness gpg < 1
    Maximum pH (Continuous) 11
    Minimum pH (Continuous) 3
    Maximum pH (Cleaning 30 min) 12
    Minimum pH (Cleaning 30 min) 2
    Maximum Turbidity (NTU) 1
    Literature | Manual Product Overview
    Defender Brackish RO Manual
    Defender Brackish RO Manual
    Videos Literature | Manual

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