Whole Home

Whole-home filtration is placed at the point of entry in your home, ensuring that all water in your home will be treated. This type of filtration can remove hard minerals, chemicals, chlorine, whatever you want your water to be, we have the systems.

Drinking Water

We have over 60 different systems available. Whether you want purified water or alkaline, we have many choices for you to choose from. All of our systems and filters are Made in America and are NSA Approved for your safety.

Bottle-Less Coolers

For your office, your home or maybe your backyard entertainment areas, these coolers have the filtration "built-in" so no waiting for delivery, no heavy bottles to lift! Just pure unlimited drinking water. Available with Hot, Cold and Room Temperature options.


We maintain and service every system that we sell. We keep track of your service records and let you know when you are due for periodic services. Whether it's filter changes, salt or potassium delivery or water testing to make sure that your systems are performing to optimum levels, we've got your back!

McCowin Water Specialists in Water Treatment Systems

Ensuring that you have clean, uncontaminated water in your home is crucial to maintain your health. McCowin Water, Inc. specializes in home water filters in Orange County, California that cater to your every need. As experts in water filtration, we offer whole home solutions, and filters that provide unlimited drinking water, as well as a range of maintenance and service options designed to ensure your system is always working perfectly.


Family owned and operated Since 1972, McCowin Water has been building relationships with many of the industry's Top Suppliers of Water Filtration. Because of these relationships, we are able to offer you choices when looking for Filtration Solutions for your home. We really try to match the right system to each client so that you get exactly the results you want with your water!

Why Choose McCowin Water

You need a Water Treatment Expert to obtain the quality water you expect in your home. We will provide you a 'No Obligation' consultation, complete with a water test to evaluate your needs. Our experts will recommend customized solutions to treat your water from an advanced line of products not available in stores. After the installation, you will always have someone local to rely on to service your systems for years to come.


Whether you’re looking for Whole House Water Filtration Systems like water softeners or just better tasting drinking water with reverse osmosis or alkaline water systems, our water treatment specialists can help! Call us TODAY – Protect your Family!

Family Owned and Operated Since 1972

Family Owned and Operated Since 1972

Our Testimonials

What my Father always said is that 'As long as we always treat our customers like family, we will be around as long as we want to be.' It's been 49 years so far so we must be doing things right!"
Brian McCowin

Whole Home Water Filters in Orange County, California

At McCowin Water, Inc., we offer water treatment systems in Orange County, California that remove all impurities from the water provided to your home. Hard minerals, chlorine, and other chemicals are eliminated to ensure the water you drink is pure. We offer bottle-less coolers in a range of temperatures for convenient clean water in an instant. For more information, call us today at (888) 473-2892.

Water News and Information

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Water Filtration Solutions: How They Help Avoid Health Problems

Water is a limited resource. Although the water that is supplied to your home is treated, there is no telling of what it could pick up in the pipelines on its way to your place. Many waterborne diseases, such as diarrhea, cholera, typhoid fever, and malaria can be easily contracted if you’re not careful with […]

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Whole-Home Water Filtration Solutions You Must Explore

Installing a whole-home water filtration system should be your first line of protection against water toxins. Municipal and community water supplies, having sources like rivers, streams, and lakes, are treated using chlorine and chloramines. While chlorine and chloramines have reduced the danger of waterborne pathogens and illness, they are not without their own set of […]

Trusted Partners

Natural water, Fresh Water, mineral water they are working with us. They work with us because we are giving them fresh, safe, pure and healthy water with trust and honesty.

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