Licensed Reverse Osmosis Installation in Phoenix, Arizona
20+ Years of Experience
Family-Owned Business
Industry Leading Warranties
NSF/ANSI Tested and Certified Components
Licensed, Bonded, and Insured
Our Reverse Osmosis Systems Feature
Contaminant Removal
Enjoy pure, safe drinking water with our Reverse Osmosis systems, removing 99% of contaminants for the cleanest water straight from your tap.
Industry Leading Warranty
Industry-leading warranty on parts ensures quality and reliability, and each RO system includes leak detection and automatic shut-off for added peace of mind.
Enhanced Taste & Odor
Significantly enhance the taste, odor, quality, and clarity of your water. By eliminating impurities and other chemicals, the water produced by an RO system often tastes and smells better than tap water.
Certified Components
Our RO systems feature NSF/ANSI-certified components and media, ensuring safe, high-quality water you can trust.
Installation & Haul Away
Standard under-the-sink installation with existing faucet hole is included, and we will haul away your old system at no charge!
Cost Effective & Easy Maintenance
Get purified water at a fraction of the cost of bottled water with easy maintenance to keep your system providing pure water.
Reverse Osmosis Systems
Pentair Pro Series 5 Stage 75 GPD High Efficiency
Our Pro Series High Efficiency Reverse Osmosis System is a 1:1 Reverse Osmosis System, which means it will help you save up to 75% of waste water, which makes this system incredibly environmentally friendly.
Typically, reverse osmosis works off of a 4:1 ratio principle, for every 1 gallon of product water you will have up 4 gallons going to the drain. This system is the most economically effective RO system on the market, with a 1:1 ratio Pentair membrane that uses 75% less waste water.
MOST POPULAR
Pro Series 5 Stage 75GPD High Efficiency - $625
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Filtration Process
Filter Stage 1 - 5 Micron Sediment Filter - Reduces Dirt, Sand and Rust
Filter Stage 2 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 3 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 4 - 75 GPD (gallons per day) High Efficiency Membrane
Filter Stage 5 - Carbon Post filter, to enhance the water’s taste.
Specifications
Dimensions: 15”W x 6”D x 18.5”H
Tank: 11″ dia. x 15.5″H
Maintenance
Filter Rating – 12 Month
Membrane Rating – 2 to 3 Years
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
Pentair Pro Series 6 Stage 75 GPD High Efficiency
Our ProSeries 6 Stage High Efficiency Reverse Osmosis System is a 1:1 Reverse Osmosis System, which means it will help you save up to 75% of waste water, which makes this system incredibly environmentally friendly.
Alkaline Mineral Filter - Re-mineralization of water and boosts pH 1.0 to 2.0
ALKALINE ProSeries 6 Stage 75GPD High Efficiency - $685
ALKALINE + UV ProSeries 7 Stage 75GPD High Efficiency - $785
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Filtration Process
Filter Stage 1 - 5 Micron Sediment Filter - Reduces Dirt, Sand and Rust
Filter Stage 2 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 3 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 4 - 75 GPD (gallons per day) High Efficiency Membrane
Filter Stage 5 - Carbon Post filter, to enhance the water’s taste.
Filter Stage 6 - Re-mineralization of water and boosts pH 1.0 to 2.0
Specifications
Dimensions: 15”W x 6”D x 18.5”H
Tank: 11″ dia. x 15.5″H
Maintenance
Filter Rating – 12 Month
Membrane Rating – 2 to 3 Years
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
T-400 Tankless 5 Stage with UV
This Upgraded 5-Stage Tankless RO+UV Water Filtration System delivers ultra-pure water with nearly zero TDS (Total Dissolved Solids) and a high 400 GPD (gallons per day) capacity. With a 1.5:1 low pure-to-drain ratio, it reduces wastewater significantly compared to standard systems. Its tankless, space-saving design keeps your kitchen organized while the advanced RO+UV filtration ensures each drop is free from contaminants, providing safe and delicious water straight from your tap.
T-400 Tankless 5 Stage with
UV - $625
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Filtration Process
Filter Stage 1 - 5 Micron Sediment Filter - Reduces Dirt, Sand and Rust
Filter Stage 2 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 3 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 4 - 400 GPD (gallons per day) High Efficiency Membrane
Filter Stage 5 - Ultra Violet (UV) disinfection for 99.9% virus & bacteria removal
Specifications
Dimensions: 15.6"L x 5.2"W x 15.9"H
Tank: Tankless
Maintenance
Filter Rating – 6-12 Month
Membrane Rating – 1 to 2 Years
UV - 1 Year
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
Isotwist 5 Stage Standard 50 GPD Water Quality Platinum Seal Certified
This model makes up to 50 gallons a day of great tasting water while taking up less space than most other 4 and 5-stage models. The easy twist-off disposable filter cartridges and RO membrane assembly are designed to make installation and replacement quick, easy and sanitary. These sturdy and reliable US made systems are IAPMO Platinum Seal certified to significantly reduce 13 contaminants to NSF/ANSI 58 Certified Reduced Contaminants: Arsenic, Barium, Cadmium, Chromium III & VI, Copper, Fluoride, Lead, Radium 226 & 228, Selenium, TDS, Turbidity.
Water Quality Platinum Seal Certified - tested for structural integrity, chemical extraction and reduction of contaminants
Isotwist 5 Stage Standard 50GPD Water Quality Platinum Seal Certified - $525
Isotwist 5 Stage High Efficiency 50GPD - $625
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Filtration Process
Filter Stage 1 - 5 Micron Sediment Filter - Reduces Dirt, Sand and Rust
Filter Stage 2 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 3 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 4 - 50 GPD (gallons per day) Membrane
Filter Stage 5 - Carbon Post filter, to enhance the water’s taste.
Specifications
Dimension: 14”W x 6”D x 15.5”H
Tank: 11″ dia. x 15.5″H
Maintenance
Filter Rating – 12 Month
Membrane Rating – 2 to 3 Years
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
DROP Reverse Osmosis System
This simple system fits right under your sink and gives you crystal-clear, great-tasting water.
The DROP Reverse Osmosis System does this by reducing contaminants including chlorine, lead, pesticides, fluoride, pharmaceuticals, arsenic, and bacteria. Additionally, it eliminates the amount of sediment in your water. The DROP Reverse Osmosis System will give you water with improved taste, odor, and appearance.
Key Features
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Quick Change Filters & Reverse Osmosis Membrane
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Built-in Leak Protection
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TDS Monitoring of Feed & Product Water
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Text, Email & Push Notifications for Filter Changeouts
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Atmospheric Storage – No Backpressure On Membrane for faster RO water production
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Built in Feed & Delivery Pumps for Optimal Pressure
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WiFi Connectivity Through DROP Hub
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888 Brush Nickel Faucet with Light Indicator Included
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Other faucet styles available with Booster Pump Required ($193.55)
DROP Reverse Osmosis System without Hub - $1,206.32
DROP Reverse Osmosis System with Hub - $1,457.59
Filtration Process
RO-RO: Removes small molecular organic matter, colloids, microorganisms
RO-CAP: Removes odor to improve the taste of drinking water.
RO-PAC: Removes dirt corrosion, sand, chlorine and other suspended solids.
RO-MPC (optional): Cartridge boosts the pH and adds beneficial minerals magnesium and calcium to the drinking water.
Specifications
Depth: 15 in
Width: 8.5 in
Height: 14.5 in
Maintenance
Filter Rating – 12 Month
Membrane Rating – 2 to 3 Years
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Twist & LOC 75GPD 4 Stage
4-Stage 75 GPD NRO Quick Change Twist & Loc RO System features quick change twist & lock cartridges. The Quick Change Twist & Loc cartridge is disengaged and removed with only a quarter twist of the wrist without shutting off the water. Cartridges can even be changed when the customers home’s water system is operating under full pressure.
Twist & LOC 75 GPD 4 Stage RO
System - $525
Standard under sink installation is included, drilling a faucet hole is additional $100.00
Filtration Process
Filter Stage 1 - 5 Micron Sediment Filter - Reduces Dirt, Sand and Rust
Filter Stage 2 - 10 Micron Carbon Block Filter - Reduces Chlorine,
Objectionable Tastes and Odor.
Filter Stage 3 - 75 GPD (gallons per day) Membrane
Filter Stage 4 - Carbon Post filter, to enhance the water’s taste.
Specifications
Call for more details
Maintenance
Filter Rating – 2500 Gallons (6 to 12 Months)
Membrane Rating – 2 Years
Warranty
Parts 5 Year
Labor 1 Year
Labor Warranty Extended to 5 Years if CWS does yearly filter service
Faucet Selection
Standard under sink installation is included, drilling a faucet hole is additional $100.00
103 Style Faucet
103 Chrome – Default Included Option
103 Brush Nickel - Optional
888 Style Faucet - $85
888 Chrome
888 Brush Nickel
888 Antique Bronze
888 Matte Black
703 Style Faucet - $85
603 Chrome
603 Brush Nickel
603 White
603 Antique Bronze
603 Oil Rubbed Bronze
905 Style Faucet - $75
905 Chrome
905 Brush Nickel
905 Black
905 White
905 Antique Bronze
905 Oil Rubbed Bronze
905 Matte Black
603 Style Faucet - $75
603 Chrome
603 Brush Nickel
603 White
603 Antique Bronze
603 Oil Rubbed Bronze
Reverse Osmosis Services
Filters
1 Sediment Post
2 Carbon Post
1 Carbon Polishing
Brands
Apec, US Water Systems, Express Water, Ultima. Pro Series, ISprings, Watts, Discount Water, and many more.
Easy Financing
We offer easy financing (TERMS 3 to 60 months / APRs range from 0 to 35.9%). Pay in installments for your purchase. Call us to learn more!
Why Us?
Family-owned for over 20 years, Complete Water Systems is Arizona’s trusted provider of water filtration, softening, heating, and service solutions. We prioritize integrity, professionalism, and customized solutions tailored to your home's needs. We deliver top-quality, efficient reverse osmosis systems designed to provide pure water to your tap. Our licensed technicians ensure seamless installation and reliable performance—guaranteed.
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Best Price Guarantee — We match or beat any competitor’s price on comparable systems, warranties, and services.
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Customized Solutions — Tailored packages to fit your home and budget.
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Top-Quality & Unbeatable Warranties — Built to last with industry-leading protection.
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Expert Installation & Service — Skilled technicians ensure seamless setup and ongoing support.
Get the best price—contact us today!
What Our Clients Say About Their Water Transformation
We've Got You Covered
We proudly serve all of Arizona with expert water filtration and plumbing services. From Phoenix to every corner of the state, we're here to ensure you have clean, safe water whenever you need it.
North Phoenix Area
Anthem
New River
Carefree
Cave Creek
Glendale
Paradise Valley
Peoria
Phoenix
Scottsdale
South Phoenix Area
Avondale
Chandler
Guadalupe
Queen Creek
San Tan Valley
Sun Lakes
Tempe
West Phoenix Area
Buckeye
El Mirage
Goodyear
Litchfield Park
Morristown
Sun City
Sun City West
Surprise
Tolleson
Youngtown
East Phoenix Area
Apache Junction
Fountain Hills
Gilbert
Mesa
Rio Verde
Others with Dispatch Fee
Casa Grande
Dewey-Humboldt
Eloy
Florence
Maricopa
Prescott
Prescott Valley
Sedona
Wickenburg
Gold Canyon
Flagstaff
Payson
Tucson
Coolidge
