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Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems

Defender Whole House Reverse Osmosis System

List Price: Factory Direct Price: SALE PRICE:
$10,695.00
$10,695.00
$10,695.00 FACTORY DIRECT SAVINGS

Cyber Week Sale Ends:

Optional Upgrades:

+$749.00
+$1,295.00
SKU: 224-DFWHRO : 224-DFWHRO-4000-PF-140
The Defender™ is a USA-made whole-house reverse osmosis system built for performance, longevity, and peace of mind—removing even the toughest contaminants and delivering clean, great-tasting water to every tap.
Subtotal: $10,695.00

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Defender Whole House Reverse Osmosis System - US Water Systems

Defender Whole House Reverse Osmosis System

$17,658.34 $10,695.00
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems
Defender Whole House Reverse Osmosis System - US Water Systems

Defender Whole House Reverse Osmosis System

$17,658.34 $10,695.00
Production Rate: 4,000 GPD
Select Tank: 140 Gallon Atmospheric
Delivery Pump: SCALA 1

Frequently Bought Together

Defender Whole House Reverse Osmosis System - US Water Systems 1080 Choose Options
$17,658.34 $10,695.00
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Production Rate: 4,000 GPD
Select Tank: 140 Gallon Atmospheric
Delivery Pump: SCALA 1
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Product Overview

Check this Great Installations from Our Customers

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A small utility room featuring the US Water Systems Inc Defender Whole House Reverse Osmosis System, with industrial water filter, tanks, pipes, control panel, and filtration equipment neatly arranged against the walls.
The US Water Systems Inc Defender Whole House Reverse Osmosis System features industrial-grade filters, a softener setup with labeled tanks, and a control panel, neatly installed in a basement with concrete walls.
A US Water Systems Inc Defender Whole House Reverse Osmosis System in a utility room, featuring three clear filter housings, gauges, and a digital scale on top with visible pipes and valves in the background of this industrial-grade setup.

Industrial-Grade Purity, Made for Home Use

Reverse osmosis is used in aerospace, biotech, and high-tech manufacturing. The Defender brings that same level of protection to your entire home by reducing TDS by up to 99% and removing thousands of harmful impurities.

Before A clear plastic water bottle with a black lid and handle, filled with light yellow liquid, stands upright against a white background—showcasing results after using the US Water Systems Inc Defender Whole House Reverse Osmosis System.
After Clear plastic water bottle with a black screw-on lid and carrying loop, photographed on a plain background—ideal for use with the US Water Systems Inc Defender Whole House Reverse Osmosis System.
A black droplet icon with a white plastic bottle crossed out shows no plastic bottles allowed—perfect for areas using the US Water Systems Inc Defender Whole House Reverse Osmosis System.

Take the Not-Water Out of Your Water

Everything that doesn’t belong—gone at 0.0001 microns

A blue circle with a white water droplet above red and white stripes—ideal imagery for the Defender Whole House Reverse Osmosis System by US Water Systems Inc, an advanced home water purification solution.

Carefully Assembled in the USA

Precision-built in America with better parts, better oversight, and better support

Black and white illustration of a faceless person with a bun holding a hammer, wearing a short-sleeved shirt—preparing to install the US Water Systems Inc Defender Whole House Reverse Osmosis System.

Engineered to Waste Less, Deliver More

High-efficiency RO with built-in recycle and blending functionality

Like two hands cupping a lotus flower, the US Water Systems Inc Defender Whole House Reverse Osmosis System safeguards your home by providing pure, protected water throughout your household.

Built to Outlast. Rated for Years, Not Months

Long-life membranes, stainless steel, and smart design. Built for the long haul

Benefits You'll Love: The Power of Whole Home Reverse Osmosis

A person rinses oranges under a kitchen faucet, enjoying purified water from the Defender Whole House Reverse Osmosis System by US Water Systems Inc. Broccoli and red bell pepper await cleaning with water from this advanced filtration system.

Unmatched Water Quality

The Defender system can drastically reduce chemicals, bacteria, and heavy metals throughout your home. You’ll have peace of mind knowing your water is cleaner and safer from every tap.

A woman with brown hair in a ponytail drinks purified water from a clear glass indoors, thanks to the Defender Whole House Reverse Osmosis System by US Water Systems Inc, with a blurred brick wall in the background.

Healthier, Better-Tasting Water

Your water will taste fresh and pure, free from unpleasant odors and flavors. Enjoy better-tasting coffee, tea, and meals without needing bottled water.

Open dishwasher with sparkling plates, glasses, and cutlery neatly arranged in racks—thanks to the US Water Systems Bodyguard Whole House Filtration & Green Wave Salt Free Alternative System—ready to be unloaded in a bright kitchen.

Protects Your Home and Appliances

This system reduces wear on your pipes and appliances caused by hard water and contaminants, saving you money on repairs and extending the life of your home’s infrastructure.

A white wellhead sits on a green lawn before a beige house, suggesting potential installation of the Defender Whole House Reverse Osmosis System by US Water Systems Inc for clean, purified water throughout the home.

Complete Well Water Protection

Ideal for private wells, this system offers multi-layered protection against sediment, chemicals, and pathogens, ensuring safe, usable water throughout your home.

A person fills a clear glass with water from a modern kitchen faucet, enjoying clean, refreshing water illuminated by warm light—thanks to the Defender Whole House Reverse Osmosis System by US Water Systems Inc.

No Bottled Water Needed

Skip the cost, waste, and hassle. Defender delivers better-than-bottled quality from every faucet—eliminating the need for single-use plastics or countertop filters.

A person folds clean towels by a wicker laundry basket and detergent in a laundry room featuring the US Water Systems Inc Defender Whole House Reverse Osmosis System for superior water purification.

Laundry That Feels (and Smells) Better

RO water prevents mineral buildup in fabrics, so clothes and linens stay brighter, softer, and free from musty odors.

The Defender Whole House RO - A Complete Solution

With pre-treatment options, ultraviolet disinfection, storage, and water delivery, this product is customizable to meet your unique water quality needs.

Installation Guide

The US Water Systems Inc Defender Whole House Reverse Osmosis System features labeled tanks, filters, control panel, pipes, and sensors for comprehensive water filtration and storage throughout your home.
(Optional) Backwashing Pre-Filter for De-Chlorination
Inlet Water Supply
Lockout Relay; prevents backwash during system operation
Anti-Scalant Injection Connections
Lockout Relay; prevents backwash during system operation
RO system power, 220v 1PH 20A
Tank Float connections to turn the system on and off
Booster pump, to deliver water pressure to home or business
110v outlet for power to UV disinfection lamp and SCALA delivery pump
Tank isolation valve
Concentrate discharge from RO system
Clean water tank-fill line from RO system
Atmospheric holding tank, for storing purified water (multiple size options available)
Pressurized purified water returning to home or business
The Defender Whole House Reverse Osmosis System by US Water Systems Inc features stainless steel filter housings, gauges, a control panel, and visible piping—perfect for large-scale reverse osmosis applications.

American Craftsmanship

Every detail of a Defender Whole-House Reverse Osmosis System is built with longevity and reliability in mind. Superior components and quality control add up to a system that you can rely on.

Industrial Heavy Duty Pumps (Available Options)

Built to Last

We use stainless steel reinforced fittings, a multi-stage stainless steel booster pump, and the highest quality stainless steel valves to make sure you always have clean, high-quality water.

Close-up of a black cylindrical water filter housing from the US Water Systems Inc Defender Whole House Reverse Osmosis System, attached to a metal frame with visible shiny pipes and bolts.
Close-up of industrial machinery with metal parts, pipes, and a pump on a black frame, featured in the US Water Systems Inc Defender Whole House Reverse Osmosis System for advanced water purification.
The Defender Whole House Reverse Osmosis System by US Water Systems Inc features a metallic electric water pump with a cylindrical body and horizontal fins, securely bolted to the base for efficient whole-home water purification.

Reverse Osmosis System
Comparison

Product Features Defender Whole House RO The Other Guys
Pump Multi-Stage Stainless Steel Booster Cast-Iron Rotary Vane
High-Pressure Fittings Stainless Steel Reinforced PVC PVC
Valves Stainless Steel PVC/Brass
Warranty 2-Year "Bumper-to-Bumper" 1 Year Limited
Tech Support Lifetime Expert Tech Support Outsources Limited Tech Support
A gold and navy blue first place ribbon with a “1” and five gold stars—perfect for celebrating excellence with the US Water Systems Inc Defender Whole House Reverse Osmosis System for reducing TDS.

Pre-Treatment: What Is Needed For RO Success

A reverse osmosis system can clean up a mud puddle. However, the question becomes... for how long? With proper pre-treatment, a reverse osmosis system will give you years of reliable performance and outstanding water quality.

For Homes With a Private Well

No two wells produce the same water. The chemistry can vary dramatically—from iron, manganese, and sulfur to bacteria, nitrates, and PFAS. That’s why US Water Systems follows the principle: measure twice, cut once. Before recommending a Defender™ system—or any solution—we strongly advise starting with a laboratory-grade water analysis. It’s the most responsible first step toward solving water quality issues the right way.

A Smart First Step—At No Risk to You

The cost of the Waterlogix™ test kit is fully credited toward any recommended system purchase. That means your lab-grade water analysis is essentially free when you’re ready to move forward—ensuring our solution is right the first time and allowing us to stand behind its performance with confidence.

Blue box labeled Defender Whole House Reverse Osmosis System by US Water Systems Inc, with water splash graphics, lab-tested details—ideal for checking your homes reverse osmosis or water purification performance and reducing TDS. SHOP NOW

For Homes That Pay A Water Bill

Water from a municipal source has 3 primary and predictable waterborne contaminants that would be addressed prior to entering your RO system. These contaminants are sediment, chemicals such as chlorine, and limescale.

The US Water Systems Inc Defender Whole House Reverse Osmosis System features a tall, cylindrical design with a black control valve and reflective metal surface, reducing TDS for cleaner, healthier water throughout your home.

BodyGaurd Plus - Dechlorination System

  • Protects the Reverse Osmosis Membranes
  • Highest Quality Coconut Shell Carbon
  • Bluetooth Operation and Monitoring
  • 10-Year Warranty On Valve and Electronics
  • Reduces Disinfection Byproducts, Chemicals, and Many Other Contaminants
Close-up of a US Water Systems Inc Defender Whole House Reverse Osmosis System control valve on a tank, with digital display and buttons—ideal for home water purification and TDS reduction.

Behind the Scenes: Membranes

Cutaway diagram of the Defender Whole House Reverse Osmosis System by US Water Systems Inc shows cylindrical design with layered mesh and filter sheets. Blue arrows illustrate air movement for TDS removal via reverse osmosis filtration. Permeate
Collection Tube Brine
Seal Feed Water Concentrate Water
Purification
Network RO Membrane Purified
Water
A simple blue icon for the Defender Whole House Reverse Osmosis System by US Water Systems Inc, showing an oil refinery with storage tanks, a droplet, and water purification elements for enhanced clarity.

Pre-treated water is pumped into the RO membrane at about 150 PSI

A blue square road sign with a white Y-shaped arrow, showing a split where traffic goes left or right—just like choosing the US Water Systems Inc Defender Whole House Reverse Osmosis System for TDS removal in your home.

As the water moves through the wound passages in the membrane, it’s separated into two streams: Permeate = Good Water Concentrate = Waste Water

Icon of the Defender Whole House Reverse Osmosis System by US Water Systems Inc, showing droplets above each filter and a check mark to indicate effective TDS removal and approved whole-home water purification.

The treated water (Permeate) then flows out of the membrane through the collection tube and into the storage tank

The Defender Whole House Reverse Osmosis System by US Water Systems Inc is represented by a dark blue water droplet with two white circular arrows, highlighting advanced water purification, recycling, and TDS removal for cleaner water.

A portion of the wastewater (Concentrate) can be recycled back to the input to improve recovery, and the small portion remaining flows harmlessly down the drain

US Water Systems’ Waterlogix ™ 4 x 40" High-Efficiency Membranes allow for industry-leading water recovery and total dissolved solids reduction

Four cylindrical filters from the US Water Systems Inc Defender Whole House Reverse Osmosis System, with white casing and central shafts, are aligned side by side, showcasing their role in advanced TDS removal and water purification.

Ultimate Filtration: Eliminating PFOA/PFAS and Beyond

Contaminant Reduction Contaminant Reduction
Algae 99.99% Mercury 98.00%
Aluminium 98.00% Mold 99.99%
Amoebic Cyst 99.99% Nickel 95.00%

Simplified System Flow Diagrams

Diagram of the US Water Systems Inc Defender Whole House Reverse Osmosis System, showing labeled parts—booster pump, pre-filter, pressure switch, TDS-removing membrane—and flow paths for pure and concentrate water.

System Installation Requirements

Still Have Questions?

Contact Us
Literature | Manual Product Overview
US Water Defender Manual
US Water Defender Manual
Float Weight Drawing
Float Weight Drawing
Defender Spec
Spec Sheet
Videos Literature | Manual

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