“Really love our water filtration system.
Makes a huge difference in our water quality.
— Gina S, CT
Water Filtration Systems
Cleaner, Safer, Filtered Water
From morning showers to evening sips, your water plays a crucial role throughout the day. That’s why Culligan® is on a mission to provide you and your family with the best quality water to keep your home and life running smoothly.
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Reduce Contaminants and Concern
Culligan water filtration systems do more than solve your water problems. You’ll also get more convenience and greater peace of mind with systems that elevate your life and your home.
Benefits of Water Filtration
Unlimited Supply
Filtered Water on Tap
Smart Features
Third-Party Certified
Reverse Osmosis Systems
Culligan RO systems are certified to reduce up to 61 contaminants in your drinking water, plus 15 emerging contaminants, to provide a virtually unlimited filtered supply on tap.* With a long filter life and convenient smart features, your system ensures that you’re getting the safer, better-tasting water you deserve.
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World’s Most Efficient**
Culligan offers the world’s most efficient reverse osmosis system.
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Reduced Waste
Cut down on plastic waste and the amount of oil and gas used to produce and deliver single-use bottles.
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Smart Insights
With the Culligan Connect app, track water consumption, view contaminants reduced and see your savings vs. bottled water.
Whole House Water Filter Systems
With whole house water filtration, get better water from every faucet. Address problem water issues like sulfur (that rotten-egg smell), iron (rust stains), chlorine and more with a solution that delivers better-tasting, cleaner water throughout your home.
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Customized Solutions
Water filters can be customized to address your home’s specific type of problem water.
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Certified to NSF Standards
Each system is third-party tested and certified to NSF standards to ensure greater peace of mind.
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Smart Features
With “set it and forget it” convenience, the system can alert your Culligan dealer if your water filter needs service.
Not What You Need?
Concerned about limescale buildup, stiff laundry, spotty dishes or dry skin and hair? Discover how water softeners can protect you from the damage hard water can do.
Discover More About Water Filtration
Learn about the types of water filtration systems, the benefits of each and how your local water professionals can guide you to the right solution.
Unmatched Quality. Unforgettable Service.
Never Question Your Water Again
Start enjoying the benefits of better water today with help from your local Culligan water expert.
Compare Whole House Water Filters
Whole Home Water Filtration Systems
Reverse Osmosis Systems
 Whole Home Water Filtration Systems |  Reverse Osmosis Systems | |
|---|---|---|
Benefits | ||
Smart features | ||
Third-party certified | ||
Focuses on drinking water quality | ||
Addresses issues at a specific tap, such as the kitchen sink | ||
Reduces a broad range of contaminants | ||
Targets specific contaminants | ||
Supplies filtered water from every tap | ||
Improves quality of water for cleaning and bathing | ||
Frequently Asked Questions
What is water filtration?
Water filtration is a process through which water is treated to become cleaner and safer by reducing contaminants, bacteria, particulates and other irritants, like a chlorine taste or swampy smell.
What is a water filtration system?
Whole-house water filtration systems address specific water issues that impact you throughout your home, like sulfur and chlorine smells or the presence of iron; its job is to improve tap water for drinking, bathing, cleaning and more. On the other hand, under-sink filters like reverse osmosis systems are installed to address a variety of problems impacting drinking water quality. This can include issues with tastes or odors or concerns about contaminants like lead and mercury.
What is the best water filter system?
Choosing the best whole house water filtration system for your home will depend on the type of water issues you may be experiencing. Culligan offers different whole home water filtration systems designed to reduce specific contaminants such as sulfur, chlorine, iron and arsenic. You should also look for systems that are third-party certified and brands that offer professional installation and service.
How much does a home water filtration system cost?
The cost of a whole house filtration system depends on several variables including the type of system, what features are included, quality, durability, and more. Fortunately, Culligan has flexible payment options (including financing and rental) to fit every household. Our initial in-home water test and consultation are also always free.
What is a reverse osmosis water filtration system?
Reverse osmosis is a method that can be used in water filtration to help reduce unwanted minerals, substances, and other impurities in your drinking water. RO systems use pressure to push water through a tightly woven membrane designed to filter contaminants as small as a single atom.
What is a whole house water filtration system?
A whole house water filtration system is designed to address specific water quality issues that impact not just your drinking water but bathing, cleaning and other uses as well. Installed where your water enters your home to provide cleaner, safer water from every tap, these systems can address contaminants like PFAS, chlorine, iron, arsenic and more.
Schedule Your Free Water Consultation
Our Culligan water experts are ready to help you find the right solution for your problem water. We offer a free in-home water test, or we can schedule a phone consultation (you can select your choice in the next step).
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*Contaminants may not be present in your water.
**Efficiency is based on 3rd party testing to NSF/ANSI standards for a tanked RO system.