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Why Do Denison & Sherman Homeowners LOVE Us?
The water tastes great and makes perfect iced tea. The tea does not turn cloudy. All the people that I have dealt with at Culligan have been very nice and professional.
HE NEVER GAVE UP despite issues from my side with the Wi-Fi. Very kind and respectful person. You can tell he loves what he does…the water quality was tested and everything is perfect.
…and having the faucet handy for making coffee and cooking with, also used to provide drinking water for puppies. Thankful to know that the water we give our dogs and bath in is also cleaner than it was.
Why Choose Culligan Reverse Osmosis Water Filters For Your Denison & Sherman Home?
Our water filters are second to none. But the real secret: We make water treatment easy.
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Expert Installation. Easy To Use.
Culligan has been in the water treatment service business for more than 85 years…and it’s all we do. Your local Culligan delivers, installs and maintains your reverse osmosis filtration system for you, so you don’t have to! No worries about shipping damage, unboxing, or installation location. We also offer maintenance and filter changes annually.
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Unmatched Performance + Custom Solutions.
How many water filters have you been through over the years? Many off-the-shelf filters only reduce the most common impurities in your Denison & Sherman area, such as chlorine. Culligan’s drinking water systems address the unique content of your water, filtering 99% of all water contaminants at less cost, with unmatched durability and less hassle over the course of the product lifecycle.
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Why Reverse Osmosis Drinking Water Filters Over Pitcher/Faucet Mount Styles?
RO filters are one of the most reliable methods of eliminating drinking water contaminant(s) that can be harmful to your health. These are pervasive in many water supplies across the country and include lead, PFAS, arsenic, volatile organic compounds, and other emerging problems that store-bought filters will not remove.
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Why Price Tags Are Deceptive
Unless you were an expert installer, you wouldn’t buy a water heater directly off Amazon. However, big box retailers, both in-store and online, take this transactional approach to homeowners for reverse osmosis water filters. They offer you low price tags for incentive. But what they don’t tell you about are the installation hassle, the third-party customer service on both ends, and how you’re left to your own devices to maintain your system – don’t forget, your home is unique. There is no one-size-fits-all solution. If you truly want to save throughout the life of your system, go with the expert!
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Top Products
The Most Popular Reverse Osmosis Water Filters for Denison & Sherman
The Aquasential® Smart Reverse Osmosis Water Filter (RO)
- 7 stages of filtration and 12 filter options
- Certified for reduction of 58 contaminants
- 2-in-1 sediment and carbon filter screens out sediment and particles
- Can alert you and your dealer when service or filter replacements are needed
Aquasential™ Tankless Reverse Osmosis Filter System
- Requires 2/3 less space than traditional RO systems
- New dashboard panel provides real-time feedback on water quality and system health
- Reduce total dissolved solids and particulates found in tap water by 95%.
Aquasential RO and Smart RO With Total Defense Cartridge
- Can be retrofitted to your current Culligan RO system
- Can reduce PFOS and PFOA by 99% at levels up to 1,500 parts-per-trillion (ppt) to <1 ppt
- Certified to NSF/ANSI 58 Total PFAS-2022 set by the WQA (Water Quality Association)
- Other RO systems with similar cartridge only have NSF 58 PFOA and PFOS certification and reduce to <70 pp
Additional Information
Make Your Water Work For You – Everywhere You Go.
The Culligan Connect™ App For Water Filters
- Track your daily water usage, financial savings and environmental impact
- Monitor contaminants that are being reduced in your tap water
- Filter change notifications
Water Softeners
- 24% in energy savings by using softened cool water to wash clothes
- 30% more out of your water-using appliances when water contaminants are filtered out
- 50% in reduced detergent costs when washing laundry, hair and body in soft water
Whole Home Filtration
- Deliver cleaner, healthier
water to every faucet - Optimal for houses with
well water - Softening and filtration
provides a complete solution
Who Are Reverse Osmosis Water Filters For?
RO Water Filter FAQ
We Have Answers!
What is a reverse osmosis drinking water system?
A reverse osmosis (RO) system is a point-of-use water filtration system that removes a wide range of contaminants from drinking water using a multi-stage filtration process. It is commonly installed under the kitchen sink to provide clean, great-tasting drinking and cooking water.
What does a reverse osmosis system remove from water?
Reverse osmosis systems are designed to significantly reduce contaminants such as:
- Chlorine and chloramine
- Total dissolved solids (TDS)
- Heavy metals
- PFAS and other emerging contaminants
- Taste- and odor-causing substances
This makes RO one of the most effective drinking water treatment options for homes.
Is reverse osmosis good for city water?
Yes. RO systems are very effective for city water, especially in areas where chlorine, taste, or dissolved solids are common concerns. Many homeowners choose RO specifically because they prefer not to drink tap water.
Does reverse osmosis work with well water?
Yes. RO systems can be used with private well water, but well water may require pre-filtration for sediment, iron, or hardness before RO treatment. A water test helps determine the proper setup.
Is filtered water considered purified water?
Filtered water and purified water are not quite the same thing. Filtered water may still contain minerals or other dissolved solids while having been purged from sediment, chlorine and other contaminants. Purified water may have been deionized or distilled to contain the highest level of purity. Culligan’s reverse osmosis systems remove 99% of all contaminants. Your water still may contain trace amounts of minerals.
How is reverse osmosis different from a water softener?
A water softener treats all the water entering the home to remove hardness minerals, while a reverse osmosis system treats only drinking water to remove a broader range of contaminants. Many homes use both systems together for complete water treatment.
Will reverse osmosis improve the taste of my water?
Yes. RO systems are widely chosen because they dramatically improve the taste, odor, and clarity of drinking water, making it ideal for drinking, cooking, ice makers, and coffee.
How much water does a reverse osmosis system produce?
Production depends on the system type. Traditional tank-style RO systems store filtered water for on-demand use, while tankless RO systems produce water on demand and require less space.
How often do reverse osmosis filters need to be replaced?
Filter replacement schedules vary by system and water quality, but most RO systems require periodic filter changes to maintain performance. Smart RO systems can alert homeowners when service or filter replacement is needed.
Is reverse osmosis safe for residential homes?
Yes. Reverse osmosis systems are designed specifically for residential use and are widely used across the United States. When properly installed and maintained, they provide consistent, high-quality drinking water.
Do you offer tankless reverse osmosis systems?
Yes. Tankless reverse osmosis systems are available and are popular for homes that want a compact design, real-time filtration, and reduced storage space compared to traditional RO systems.
What areas do you install reverse osmosis systems in?
We install reverse osmosis drinking water systems throughout Grayson, Cooke, and Fannin counties in Texas, as well as Bryan and Choctaw counties in Oklahoma, serving both suburban and rural homes.
How do I know which reverse osmosis system is right for my home?
The best way to choose the right RO system is with a professional water test or consultation. This helps determine whether a tank or tankless system is best based on water quality, usage, and available space.
